Adding upstream version 1.29.0.upstream/1.29.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 2428 deletions

diff --git a/health/notifications/alarm-notify.sh b/health/notifications/alarm-notify.sh
deleted file mode 100644
index 5d41ba959..000000000
--- a/health/notifications/alarm-notify.sh
+++ /dev/null
@@ -1,2428 +0,0 @@
-#!/usr/bin/env bash
-#shellcheck source=/dev/null disable=SC2086,SC2154
-
-# netdata
-# real-time performance and health monitoring, done right!
-# (C) 2017 Costa Tsaousis <costa@tsaousis.gr>
-# SPDX-License-Identifier: GPL-3.0-or-later
-#
-# Script to send alarm notifications for netdata
-#
-# Features:
-#  - multiple notification methods
-#  - multiple roles per alarm
-#  - multiple recipients per role
-#  - severity filtering per recipient
-#
-# Supported notification methods:
-#  - emails by @ktsaou
-#  - slack.com notifications by @ktsaou
-#  - alerta.io notifications by @kattunga
-#  - discordapp.com notifications by @lowfive
-#  - pushover.net notifications by @ktsaou
-#  - pushbullet.com push notifications by Tiago Peralta @tperalta82 #1070
-#  - telegram.org notifications by @hashworks #1002
-#  - twilio.com notifications by Levi Blaney @shadycuz #1211
-#  - kafka notifications by @ktsaou #1342
-#  - pagerduty.com notifications by Jim Cooley @jimcooley #1373
-#  - messagebird.com notifications by @tech_no_logical #1453
-#  - hipchat notifications by @ktsaou #1561
-#  - fleep notifications by @Ferroin
-#  - prowlapp.com notifications by @Ferroin
-#  - irc notifications by @manosf
-#  - custom notifications by @ktsaou
-#  - syslog messages by @Ferroin
-#  - Microsoft Team notification by @tioumen
-#  - RocketChat notifications by @Hermsi1337 #3777
-#  - Google Hangouts Chat notifications by @EnzoAkira and @hendrikhofstadt
-
-# -----------------------------------------------------------------------------
-# testing notifications
-
-if { [ "${1}" = "test" ] || [ "${2}" = "test" ]; } && [ "${#}" -le 2 ]; then
-	if [ "${2}" = "test" ]; then
-		recipient="${1}"
-	else
-		recipient="${2}"
-	fi
-
-	[ -z "${recipient}" ] && recipient="sysadmin"
-
-	id=1
-	last="CLEAR"
-	test_res=0
-	for x in "WARNING" "CRITICAL" "CLEAR"; do
-		echo >&2
-		echo >&2 "# SENDING TEST ${x} ALARM TO ROLE: ${recipient}"
-
-		"${0}" "${recipient}" "$(hostname)" 1 1 "${id}" "$(date +%s)" "test_alarm" "test.chart" "test.family" "${x}" "${last}" 100 90 "${0}" 1 $((0 + id)) "units" "this is a test alarm to verify notifications work" "new value" "old value" "evaluated expression" "expression variable values" 0 0
-		#shellcheck disable=SC2181
-		if [ $? -ne 0 ]; then
-			echo >&2 "# FAILED"
-			test_res=1
-		else
-			echo >&2 "# OK"
-		fi
-
-		last="${x}"
-		id=$((id + 1))
-	done
-
-	exit $test_res
-fi
-
-export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/sbin"
-export LC_ALL=C
-
-# -----------------------------------------------------------------------------
-
-PROGRAM_NAME="$(basename "${0}")"
-
-logdate() {
-	date "+%Y-%m-%d %H:%M:%S"
-}
-
-log() {
-	local status="${1}"
-	shift
-
-	echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${*}"
-
-}
-
-warning() {
-	log WARNING "${@}"
-}
-
-error() {
-	log ERROR "${@}"
-}
-
-info() {
-	log INFO "${@}"
-}
-
-fatal() {
-	log FATAL "${@}"
-	exit 1
-}
-
-debug=${NETDATA_ALARM_NOTIFY_DEBUG-0}
-debug() {
-	[ "${debug}" = "1" ] && log DEBUG "${@}"
-}
-
-docurl() {
-	if [ -z "${curl}" ]; then
-		error "${curl} is unset."
-		return 1
-	fi
-
-	if [ "${debug}" = "1" ]; then
-		echo >&2 "--- BEGIN curl command ---"
-		printf >&2 "%q " ${curl} "${@}"
-		echo >&2
-		echo >&2 "--- END curl command ---"
-
-		local out code ret
-		out=$(mktemp /tmp/netdata-health-alarm-notify-XXXXXXXX)
-		code=$(${curl} ${curl_options} --write-out "%{http_code}" --output "${out}" --silent --show-error "${@}")
-		ret=$?
-		echo >&2 "--- BEGIN received response ---"
-		cat >&2 "${out}"
-		echo >&2
-		echo >&2 "--- END received response ---"
-		echo >&2 "RECEIVED HTTP RESPONSE CODE: ${code}"
-		rm "${out}"
-		echo "${code}"
-		return ${ret}
-	fi
-
-	${curl} ${curl_options} --write-out "%{http_code}" --output /dev/null --silent --show-error "${@}"
-	return $?
-}
-
-# -----------------------------------------------------------------------------
-# List of all the notification mechanisms we support.
-# Used in a couple of places to write more compact code.
-
-method_names="
-email
-pushover
-pushbullet
-telegram
-slack
-alerta
-flock
-discord
-hipchat
-twilio
-messagebird
-pd
-fleep
-syslog
-custom
-msteam
-kavenegar
-prowl
-irc
-awssns
-rocketchat
-sms
-hangouts
-"
-
-# -----------------------------------------------------------------------------
-# this is to be overwritten by the config file
-
-custom_sender() {
-	info "not sending custom notification for ${status} of '${host}.${chart}.${name}'"
-}
-
-# -----------------------------------------------------------------------------
-
-# check for BASH v4+ (required for associative arrays)
-if [ ${BASH_VERSINFO[0]} -lt 4 ]; then
-	fatal "BASH version 4 or later is required (this is ${BASH_VERSION})."
-fi
-
-# -----------------------------------------------------------------------------
-# defaults to allow running this script by hand
-
-[ -z "${NETDATA_USER_CONFIG_DIR}" ] && NETDATA_USER_CONFIG_DIR="/etc/netdata"
-[ -z "${NETDATA_STOCK_CONFIG_DIR}" ] && NETDATA_STOCK_CONFIG_DIR="/usr/lib/netdata/conf.d"
-[ -z "${NETDATA_CACHE_DIR}" ] && NETDATA_CACHE_DIR="/var/cache/netdata"
-[ -z "${NETDATA_REGISTRY_URL}" ] && NETDATA_REGISTRY_URL="https://registry.my-netdata.io"
-[ -z "${NETDATA_REGISTRY_CLOUD_BASE_URL}" ] && NETDATA_REGISTRY_CLOUD_BASE_URL="https://netdata.cloud"
-
-# -----------------------------------------------------------------------------
-# parse command line parameters
-
-if [[ ${1} = "unittest" ]]; then
-	unittest=1        # enable unit testing mode
-	roles="${2}"      # the role that should be used for unit testing
-	cfgfile="${3}"    # the location of the config file to use for unit testing
-	status="${4}"     # the current status : REMOVED, UNINITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
-	old_status="${5}" # the previous status: REMOVED, UNINITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
-else
-	roles="${1}"               # the roles that should be notified for this event
-	args_host="${2}"           # the host generated this event
-	unique_id="${3}"           # the unique id of this event
-	alarm_id="${4}"            # the unique id of the alarm that generated this event
-	event_id="${5}"            # the incremental id of the event, for this alarm id
-	when="${6}"                # the timestamp this event occurred
-	name="${7}"                # the name of the alarm, as given in netdata health.d entries
-	chart="${8}"               # the name of the chart (type.id)
-	family="${9}"              # the family of the chart
-	status="${10}"             # the current status : REMOVED, UNINITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
-	old_status="${11}"         # the previous status: REMOVED, UNINITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
-	value="${12}"              # the current value of the alarm
-	old_value="${13}"          # the previous value of the alarm
-	src="${14}"                # the line number and file the alarm has been configured
-	duration="${15}"           # the duration in seconds of the previous alarm state
-	non_clear_duration="${16}" # the total duration in seconds this is/was non-clear
-	units="${17}"              # the units of the value
-	info="${18}"               # a short description of the alarm
-	value_string="${19}"       # friendly value (with units)
-	# shellcheck disable=SC2034
-	# variable is unused, but https://github.com/netdata/netdata/pull/5164#discussion_r255572947
-	old_value_string="${20}"   # friendly old value (with units), previously named "old_value_string"
-	calc_expression="${21}"    # contains the expression that was evaluated to trigger the alarm
-	calc_param_values="${22}"  # the values of the parameters in the expression, at the time of the evaluation
-	total_warnings="${23}"     # Total number of alarms in WARNING state
-	total_critical="${24}"     # Total number of alarms in CRITICAL state
-fi
-
-# -----------------------------------------------------------------------------
-# find a suitable hostname to use, if netdata did not supply a hostname
-
-if [ -z ${args_host} ]; then
-	this_host=$(hostname -s 2>/dev/null)
-	host="${this_host}"
-	args_host="${this_host}"
-else
-	host="${args_host}"
-fi
-
-# -----------------------------------------------------------------------------
-# screen statuses we don't need to send a notification
-
-# don't do anything if this is not WARNING, CRITICAL or CLEAR
-if [ "${status}" != "WARNING" ] && [ "${status}" != "CRITICAL" ] && [ "${status}" != "CLEAR" ]; then
-	info "not sending notification for ${status} of '${host}.${chart}.${name}'"
-	exit 1
-fi
-
-# don't do anything if this is CLEAR, but it was not WARNING or CRITICAL
-if [ "${clear_alarm_always}" != "YES" ] && [ "${old_status}" != "WARNING" ] && [ "${old_status}" != "CRITICAL" ] && [ "${status}" = "CLEAR" ]; then
-	info "not sending notification for ${status} of '${host}.${chart}.${name}' (last status was ${old_status})"
-	exit 1
-fi
-
-# -----------------------------------------------------------------------------
-# load configuration
-
-# By default fetch images from the global public registry.
-# This is required by default, since all notification methods need to download
-# images via the Internet, and private registries might not be reachable.
-# This can be overwritten at the configuration file.
-images_base_url="https://registry.my-netdata.io"
-
-# curl options to use
-curl_options=""
-
-# hostname handling
-use_fqdn="NO"
-
-# needed commands
-# if empty they will be searched in the system path
-curl=
-sendmail=
-
-# enable / disable features
-for method_name in ${method_names^^}; do
-	declare SEND_${method_name}="YES"
-	declare DEFAULT_RECIPIENT_${method_name}
-done
-
-for method_name in ${method_names}; do
-	declare -A role_recipients_${method_name}
-done
-
-# slack configs
-SLACK_WEBHOOK_URL=
-
-# Microsoft Team configs
-MSTEAM_WEBHOOK_URL=
-
-# rocketchat configs
-ROCKETCHAT_WEBHOOK_URL=
-
-# alerta configs
-ALERTA_WEBHOOK_URL=
-ALERTA_API_KEY=
-
-# flock configs
-FLOCK_WEBHOOK_URL=
-
-# discord configs
-DISCORD_WEBHOOK_URL=
-
-# pushover configs
-PUSHOVER_APP_TOKEN=
-
-# pushbullet configs
-PUSHBULLET_ACCESS_TOKEN=
-PUSHBULLET_SOURCE_DEVICE=
-
-# twilio configs
-TWILIO_ACCOUNT_SID=
-TWILIO_ACCOUNT_TOKEN=
-TWILIO_NUMBER=
-
-# hipchat configs
-HIPCHAT_SERVER=
-HIPCHAT_AUTH_TOKEN=
-
-# messagebird configs
-MESSAGEBIRD_ACCESS_KEY=
-MESSAGEBIRD_NUMBER=
-
-# kavenegar configs
-KAVENEGAR_API_KEY=
-KAVENEGAR_SENDER=
-
-# telegram configs
-TELEGRAM_BOT_TOKEN=
-
-# kafka configs
-SEND_KAFKA="YES"
-KAFKA_URL=
-KAFKA_SENDER_IP=
-
-# pagerduty.com configs
-PD_SERVICE_KEY=
-
-# fleep.io configs
-FLEEP_SENDER="${host}"
-
-# Amazon SNS configs
-AWSSNS_MESSAGE_FORMAT=
-
-# syslog configs
-SYSLOG_FACILITY=
-
-# email configs
-EMAIL_SENDER=
-EMAIL_CHARSET=$(locale charmap 2>/dev/null)
-EMAIL_THREADING=
-EMAIL_PLAINTEXT_ONLY=
-
-# irc configs
-IRC_NICKNAME=
-IRC_REALNAME=
-IRC_NETWORK=
-
-# hangouts configs
-declare -A HANGOUTS_WEBHOOK_URI
-
-# load the stock and user configuration files
-# these will overwrite the variables above
-
-if [ ${unittest} ]; then
-	if source "${cfgfile}"; then
-		error "Failed to load requested config file."
-		exit 1
-	fi
-else
-	for CONFIG in "${NETDATA_STOCK_CONFIG_DIR}/health_alarm_notify.conf" "${NETDATA_USER_CONFIG_DIR}/health_alarm_notify.conf"; do
-		if [ -f "${CONFIG}" ]; then
-			debug "Loading config file '${CONFIG}'..."
-			source "${CONFIG}" || error "Failed to load config file '${CONFIG}'."
-		else
-			warning "Cannot find file '${CONFIG}'."
-		fi
-	done
-fi
-
-# If we didn't autodetect the character set for e-mail and it wasn't
-# set by the user, we need to set it to a reasonable default.  UTF-8
-# should be correct for almost all modern UNIX systems.
-if [ -z ${EMAIL_CHARSET} ]; then
-	EMAIL_CHARSET="UTF-8"
-fi
-
-# If we've been asked to use FQDN's for the URL's in the alarm, do so,
-# unless we're sending an alarm for a slave system which we can't get the
-# FQDN of easily.
-if [ "${use_fqdn}" = "YES" ] && [ "${host}" = "$(hostname -s 2>/dev/null)" ]; then
-	host="$(hostname -f 2>/dev/null)"
-fi
-
-# -----------------------------------------------------------------------------
-# filter a recipient based on alarm event severity
-
-filter_recipient_by_criticality() {
-	local method="${1}" x="${2}" r s
-	shift
-
-	r="${x/|*/}" # the recipient
-	s="${x/*|/}" # the severity required for notifying this recipient
-
-	# no severity filtering for this person
-	[ "${r}" = "${s}" ] && return 0
-
-	# the severity is invalid
-	s="${s^^}"
-	if [ "${s}" != "CRITICAL" ]; then
-		error "SEVERITY FILTERING for ${x} VIA ${method}: invalid severity '${s,,}', only 'critical' is supported."
-		return 0
-	fi
-
-	# create the status tracking directory for this user
-	[ ! -d "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}" ] &&
-		mkdir -p "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}"
-
-	case "${status}" in
-	CRITICAL)
-		# make sure he will get future notifications for this alarm too
-		touch "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}/${alarm_id}"
-		debug "SEVERITY FILTERING for ${x} VIA ${method}: ALLOW: the alarm is CRITICAL (will now receive next status change)"
-		return 0
-		;;
-
-	WARNING)
-		if [ -f "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}/${alarm_id}" ]; then
-			# we do not remove the file, so that he will get future notifications of this alarm
-			debug "SEVERITY FILTERING for ${x} VIA ${method}: ALLOW: recipient has been notified for this alarm in the past (will still receive next status change)"
-			return 0
-		fi
-		;;
-
-	*)
-		if [ -f "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}/${alarm_id}" ]; then
-			# remove the file, so that he will only receive notifications for CRITICAL states for this alarm
-			rm "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}/${alarm_id}"
-			debug "SEVERITY FILTERING for ${x} VIA ${method}: ALLOW: recipient has been notified for this alarm (will only receive CRITICAL notifications from now on)"
-			return 0
-		fi
-		;;
-	esac
-
-	debug "SEVERITY FILTERING for ${x} VIA ${method}: BLOCK: recipient should not receive this notification"
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# verify the delivery methods supported
-
-# check slack
-[ -z "${SLACK_WEBHOOK_URL}" ] && SEND_SLACK="NO"
-
-# check rocketchat
-[ -z "${ROCKETCHAT_WEBHOOK_URL}" ] && SEND_ROCKETCHAT="NO"
-
-# check alerta
-[ -z "${ALERTA_WEBHOOK_URL}" ] && SEND_ALERTA="NO"
-
-# check flock
-[ -z "${FLOCK_WEBHOOK_URL}" ] && SEND_FLOCK="NO"
-
-# check discord
-[ -z "${DISCORD_WEBHOOK_URL}" ] && SEND_DISCORD="NO"
-
-# check pushover
-[ -z "${PUSHOVER_APP_TOKEN}" ] && SEND_PUSHOVER="NO"
-
-# check pushbullet
-[ -z "${PUSHBULLET_ACCESS_TOKEN}" ] && SEND_PUSHBULLET="NO"
-
-# check twilio
-{ [ -z "${TWILIO_ACCOUNT_TOKEN}" ] || [ -z "${TWILIO_ACCOUNT_SID}" ] || [ -z "${TWILIO_NUMBER}" ]; } && SEND_TWILIO="NO"
-
-# check hipchat
-[ -z "${HIPCHAT_AUTH_TOKEN}" ] && SEND_HIPCHAT="NO"
-
-# check messagebird
-{ [ -z "${MESSAGEBIRD_ACCESS_KEY}" ] || [ -z "${MESSAGEBIRD_NUMBER}" ]; } && SEND_MESSAGEBIRD="NO"
-
-# check kavenegar
-{ [ -z "${KAVENEGAR_API_KEY}" ] || [ -z "${KAVENEGAR_SENDER}" ]; } && SEND_KAVENEGAR="NO"
-
-# check telegram
-[ -z "${TELEGRAM_BOT_TOKEN}" ] && SEND_TELEGRAM="NO"
-
-# check kafka
-{ [ -z "${KAFKA_URL}" ] || [ -z "${KAFKA_SENDER_IP}" ]; } && SEND_KAFKA="NO"
-
-# check irc
-[ -z "${IRC_NETWORK}" ] && SEND_IRC="NO"
-
-# check hangouts
-[ ${#HANGOUTS_WEBHOOK_URI[@]} -eq 0 ] && SEND_HANGOUTS="NO"
-
-# check fleep
-#shellcheck disable=SC2153
-{ [ -z "${FLEEP_SERVER}" ] || [ -z "${FLEEP_SENDER}" ]; } && SEND_FLEEP="NO"
-
-if [ "${SEND_PUSHOVER}" = "YES" ] ||
-	[ "${SEND_SLACK}" = "YES" ] ||
-	[ "${SEND_ROCKETCHAT}" = "YES" ] ||
-	[ "${SEND_ALERTA}" = "YES" ] ||
-	[ "${SEND_PD}" = "YES" ] ||
-	[ "${SEND_FLOCK}" = "YES" ] ||
-	[ "${SEND_DISCORD}" = "YES" ] ||
-	[ "${SEND_HIPCHAT}" = "YES" ] ||
-	[ "${SEND_TWILIO}" = "YES" ] ||
-	[ "${SEND_MESSAGEBIRD}" = "YES" ] ||
-	[ "${SEND_KAVENEGAR}" = "YES" ] ||
-	[ "${SEND_TELEGRAM}" = "YES" ] ||
-	[ "${SEND_PUSHBULLET}" = "YES" ] ||
-	[ "${SEND_KAFKA}" = "YES" ] ||
-	[ "${SEND_FLEEP}" = "YES" ] ||
-	[ "${SEND_PROWL}" = "YES" ] ||
-	[ "${SEND_HANGOUTS}" = "YES" ] ||
-	[ "${SEND_CUSTOM}" = "YES" ] ||
-	[ "${SEND_MSTEAM}" = "YES" ]; then
-	# if we need curl, check for the curl command
-	if [ -z "${curl}" ]; then
-		curl="$(command -v curl 2>/dev/null)"
-	fi
-	if [ -z "${curl}" ]; then
-		error "Cannot find curl command in the system path. Disabling all curl based notifications."
-		SEND_PUSHOVER="NO"
-		SEND_PUSHBULLET="NO"
-		SEND_TELEGRAM="NO"
-		SEND_SLACK="NO"
-		SEND_MSTEAM="NO"
-		SEND_ROCKETCHAT="NO"
-		SEND_ALERTA="NO"
-		SEND_PD="NO"
-		SEND_FLOCK="NO"
-		SEND_DISCORD="NO"
-		SEND_TWILIO="NO"
-		SEND_HIPCHAT="NO"
-		SEND_MESSAGEBIRD="NO"
-		SEND_KAVENEGAR="NO"
-		SEND_KAFKA="NO"
-		SEND_FLEEP="NO"
-		SEND_PROWL="NO"
-		SEND_HANGOUTS="NO"
-		SEND_CUSTOM="NO"
-	fi
-fi
-
-if [ "${SEND_SMS}" = "YES" ]; then
-	if [ -z "${sendsms}" ]; then
-		sendsms="$(command -v sendsms 2>/dev/null)"
-	fi
-	if [ -z "${sendsms}" ]; then
-		SEND_SMS="NO"
-	fi
-fi
-# if we need sendmail, check for the sendmail command
-if [ "${SEND_EMAIL}" = "YES" ] && [ -z "${sendmail}" ]; then
-	sendmail="$(command -v sendmail 2>/dev/null)"
-	if [ -z "${sendmail}" ]; then
-		debug "Cannot find sendmail command in the system path. Disabling email notifications."
-		SEND_EMAIL="NO"
-	fi
-fi
-
-# if we need logger, check for the logger command
-if [ "${SEND_SYSLOG}" = "YES" ] && [ -z "${logger}" ]; then
-	logger="$(command -v logger 2>/dev/null)"
-	if [ -z "${logger}" ]; then
-		debug "Cannot find logger command in the system path. Disabling syslog notifications."
-		SEND_SYSLOG="NO"
-	fi
-fi
-
-# if we need aws, check for the aws command
-if [ "${SEND_AWSSNS}" = "YES" ] && [ -z "${aws}" ]; then
-	aws="$(command -v aws 2>/dev/null)"
-	if [ -z "${aws}" ]; then
-		debug "Cannot find aws command in the system path.  Disabling Amazon SNS notifications."
-		SEND_AWSSNS="NO"
-	fi
-fi
-
-# -----------------------------------------------------------------------------
-# find the recipients' addresses per method
-
-# netdata may call us with multiple roles, and roles may have multiple but
-# overlapping recipients - so, here we find the unique recipients.
-for method_name in ${method_names}; do
-	send_var="SEND_${method_name^^}"
-	if [ "${!send_var}" = "NO" ]; then
-		continue
-	fi
-
-	declare -A arr_var=()
-
-	for x in ${roles//,/ }; do
-		# the roles 'silent' and 'disabled' mean:
-		# don't send a notification for this role
-		if [ "${x}" = "silent" ] || [ "${x}" = "disabled" ]; then
-			continue
-		fi
-
-		role_recipients="role_recipients_${method_name}[$x]"
-		default_recipient_var="DEFAULT_RECIPIENT_${method_name^^}"
-
-		a="${!role_recipients}"
-		[ -z "${a}" ] && a="${!default_recipient_var}"
-		for r in ${a//,/ }; do
-			[ "${r}" != "disabled" ] && filter_recipient_by_criticality ${method_name} "${r}" && arr_var[${r/|*/}]="1"
-		done
-	done
-
-	# build the list of recipients
-	to_var="to_${method_name}"
-	declare to_${method_name}="${!arr_var[*]}"
-
-	[ -z "${!to_var}" ] && declare ${send_var}="NO"
-done
-
-# -----------------------------------------------------------------------------
-# handle fixup of the email recipient list.
-
-fix_to_email() {
-	to_email=
-	while [ -n "${1}" ]; do
-		[ -n "${to_email}" ] && to_email="${to_email}, "
-		to_email="${to_email}${1}"
-		shift 1
-	done
-}
-
-# ${to_email} without quotes here
-fix_to_email ${to_email}
-
-# -----------------------------------------------------------------------------
-# handle output if we're running in unit test mode
-if [ ${unittest} ]; then
-	for method_name in ${method_names}; do
-		to_var="to_${method_name}"
-		echo "results: ${method_name}: ${!to_var}"
-	done
-	exit 0
-fi
-
-# -----------------------------------------------------------------------------
-# check that we have at least a method enabled
-proceed=0
-for method in "${SEND_EMAIL}" \
-	"${SEND_PUSHOVER}" \
-	"${SEND_TELEGRAM}" \
-	"${SEND_SLACK}" \
-	"${SEND_ROCKETCHAT}" \
-	"${SEND_ALERTA}" \
-	"${SEND_FLOCK}" \
-	"${SEND_DISCORD}" \
-	"${SEND_TWILIO}" \
-	"${SEND_HIPCHAT}" \
-	"${SEND_MESSAGEBIRD}" \
-	"${SEND_KAVENEGAR}" \
-	"${SEND_PUSHBULLET}" \
-	"${SEND_KAFKA}" \
-	"${SEND_PD}" \
-	"${SEND_FLEEP}" \
-	"${SEND_PROWL}" \
-	"${SEND_CUSTOM}" \
-	"${SEND_IRC}" \
-	"${SEND_HANGOUTS}" \
-	"${SEND_AWSSNS}" \
-	"${SEND_SYSLOG}" \
-	"${SEND_SMS}" \
-	"${SEND_MSTEAM}"; do
-	if [ "${method}" == "YES" ]; then
-		proceed=1
-		break
-	fi
-done
-if [ "$proceed" -eq 0 ]; then
-	fatal "All notification methods are disabled. Not sending notification for host '${host}', chart '${chart}' to '${roles}' for '${name}' = '${value}' for status '${status}'."
-fi
-
-# -----------------------------------------------------------------------------
-# get the date the alarm happened
-
-date=$(date --date=@${when} "${date_format}" 2>/dev/null)
-[ -z "${date}" ] && date=$(date "${date_format}" 2>/dev/null)
-[ -z "${date}" ] && date=$(date --date=@${when} 2>/dev/null)
-[ -z "${date}" ] && date=$(date 2>/dev/null)
-
-# ----------------------------------------------------------------------------
-# prepare some extra headers if we've been asked to thread e-mails
-if [ "${SEND_EMAIL}" == "YES" ] && [ "${EMAIL_THREADING}" != "NO" ]; then
-	email_thread_headers="In-Reply-To: <${chart}-${name}@${host}>\\r\\nReferences: <${chart}-${name}@${host}>"
-else
-	email_thread_headers=
-fi
-
-# -----------------------------------------------------------------------------
-# function to URL encode a string
-
-urlencode() {
-	local string="${1}" strlen encoded pos c o
-
-	strlen=${#string}
-	for ((pos = 0; pos < strlen; pos++)); do
-		c=${string:pos:1}
-		case "${c}" in
-		[-_.~a-zA-Z0-9])
-			o="${c}"
-			;;
-
-		*)
-			printf -v o '%%%02x' "'${c}"
-			;;
-		esac
-		encoded+="${o}"
-	done
-
-	REPLY="${encoded}"
-	echo "${REPLY}"
-}
-
-# -----------------------------------------------------------------------------
-# function to convert a duration in seconds, to a human readable duration
-# using DAYS, MINUTES, SECONDS
-
-duration4human() {
-	local s="${1}" d=0 h=0 m=0 ds="day" hs="hour" ms="minute" ss="second" ret
-	d=$((s / 86400))
-	s=$((s - (d * 86400)))
-	h=$((s / 3600))
-	s=$((s - (h * 3600)))
-	m=$((s / 60))
-	s=$((s - (m * 60)))
-
-	if [ ${d} -gt 0 ]; then
-		[ ${m} -ge 30 ] && h=$((h + 1))
-		[ ${d} -gt 1 ] && ds="days"
-		[ ${h} -gt 1 ] && hs="hours"
-		if [ ${h} -gt 0 ]; then
-			ret="${d} ${ds} and ${h} ${hs}"
-		else
-			ret="${d} ${ds}"
-		fi
-	elif [ ${h} -gt 0 ]; then
-		[ ${s} -ge 30 ] && m=$((m + 1))
-		[ ${h} -gt 1 ] && hs="hours"
-		[ ${m} -gt 1 ] && ms="minutes"
-		if [ ${m} -gt 0 ]; then
-			ret="${h} ${hs} and ${m} ${ms}"
-		else
-			ret="${h} ${hs}"
-		fi
-	elif [ ${m} -gt 0 ]; then
-		[ ${m} -gt 1 ] && ms="minutes"
-		[ ${s} -gt 1 ] && ss="seconds"
-		if [ ${s} -gt 0 ]; then
-			ret="${m} ${ms} and ${s} ${ss}"
-		else
-			ret="${m} ${ms}"
-		fi
-	else
-		[ ${s} -gt 1 ] && ss="seconds"
-		ret="${s} ${ss}"
-	fi
-
-	REPLY="${ret}"
-	echo "${REPLY}"
-}
-
-# -----------------------------------------------------------------------------
-# email sender
-
-send_email() {
-	local ret opts=() sender_email="${EMAIL_SENDER}" sender_name=
-	if [ "${SEND_EMAIL}" = "YES" ]; then
-
-		if [ -n "${EMAIL_SENDER}" ]; then
-			if [[ ${EMAIL_SENDER} =~ ^\".*\"\ \<.*\>$ ]]; then
-				# the name includes double quotes
-				sender_email="$(echo "${EMAIL_SENDER}" | cut -d '<' -f 2 | cut -d '>' -f 1)"
-				sender_name="$(echo "${EMAIL_SENDER}" | cut -d '"' -f 2)"
-			elif [[ ${EMAIL_SENDER} =~ ^\'.*\'\ \<.*\>$ ]]; then
-				# the name includes single quotes
-				sender_email="$(echo "${EMAIL_SENDER}" | cut -d '<' -f 2 | cut -d '>' -f 1)"
-				sender_name="$(echo "${EMAIL_SENDER}" | cut -d "'" -f 2)"
-			elif [[ ${EMAIL_SENDER} =~ ^.*\ \<.*\>$ ]]; then
-				# the name does not have any quotes
-				sender_email="$(echo "${EMAIL_SENDER}" | cut -d '<' -f 2 | cut -d '>' -f 1)"
-				sender_name="$(echo "${EMAIL_SENDER}" | cut -d '<' -f 1)"
-			fi
-		fi
-
-		[ -n "${sender_email}" ] && opts+=(-f "${sender_email}")
-		[ -n "${sender_name}" ] && opts+=(-F "${sender_name}")
-
-		if [ "${debug}" = "1" ]; then
-			echo >&2 "--- BEGIN sendmail command ---"
-			printf >&2 "%q " "${sendmail}" -t "${opts[@]}"
-			echo >&2
-			echo >&2 "--- END sendmail command ---"
-		fi
-
-		"${sendmail}" -t "${opts[@]}"
-		ret=$?
-
-		if [ ${ret} -eq 0 ]; then
-			info "sent email notification for: ${host} ${chart}.${name} is ${status} to '${to_email}'"
-			return 0
-		else
-			error "failed to send email notification for: ${host} ${chart}.${name} is ${status} to '${to_email}' with error code ${ret}."
-			return 1
-		fi
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# pushover sender
-
-send_pushover() {
-	local apptoken="${1}" usertokens="${2}" when="${3}" url="${4}" status="${5}" title="${6}" message="${7}" httpcode sent=0 user priority
-
-	if [ "${SEND_PUSHOVER}" = "YES" ] && [ -n "${apptoken}" ] && [ -n "${usertokens}" ] && [ -n "${title}" ] && [ -n "${message}" ]; then
-
-		# https://pushover.net/api
-		priority=-2
-		case "${status}" in
-		CLEAR) priority=-1 ;; # low priority: no sound or vibration
-		WARNING) priority=0 ;; # normal priority: respect quiet hours
-		CRITICAL) priority=1 ;; # high priority: bypass quiet hours
-		*) priority=-2 ;; # lowest priority: no notification at all
-		esac
-
-		for user in ${usertokens}; do
-			httpcode=$(docurl \
-				--form-string "token=${apptoken}" \
-				--form-string "user=${user}" \
-				--form-string "html=1" \
-				--form-string "title=${title}" \
-				--form-string "message=${message}" \
-				--form-string "timestamp=${when}" \
-				--form-string "url=${url}" \
-				--form-string "url_title=Open netdata dashboard to view the alarm" \
-				--form-string "priority=${priority}" \
-				https://api.pushover.net/1/messages.json)
-
-			if [ "${httpcode}" = "200" ]; then
-				info "sent pushover notification for: ${host} ${chart}.${name} is ${status} to '${user}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send pushover notification for: ${host} ${chart}.${name} is ${status} to '${user}' with HTTP error code ${httpcode}."
-			fi
-		done
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# pushbullet sender
-
-send_pushbullet() {
-	local userapikey="${1}" source_device="${2}" recipients="${3}" url="${4}" title="${5}" message="${6}" httpcode sent=0 user
-	if [ "${SEND_PUSHBULLET}" = "YES" ] && [ -n "${userapikey}" ] && [ -n "${recipients}" ] && [ -n "${message}" ] && [ -n "${title}" ]; then
-		#https://docs.pushbullet.com/#create-push
-		for user in ${recipients}; do
-			httpcode=$(docurl \
-				--header 'Access-Token: '${userapikey}'' \
-				--header 'Content-Type: application/json' \
-				--data-binary @<(
-					cat <<EOF
-                              {"title": "${title}",
-                              "type": "link",
-                              "email": "${user}",
-                              "body": "$(echo -n ${message})",
-                              "url": "${url}",
-                              "source_device_iden": "${source_device}"}
-EOF
-				) "https://api.pushbullet.com/v2/pushes" -X POST)
-
-			if [ "${httpcode}" = "200" ]; then
-				info "sent pushbullet notification for: ${host} ${chart}.${name} is ${status} to '${user}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send pushbullet notification for: ${host} ${chart}.${name} is ${status} to '${user}' with HTTP error code ${httpcode}."
-			fi
-		done
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# kafka sender
-
-send_kafka() {
-	local httpcode sent=0
-	if [ "${SEND_KAFKA}" = "YES" ]; then
-		httpcode=$(docurl -X POST \
-			--data "{host_ip:\"${KAFKA_SENDER_IP}\",when:${when},name:\"${name}\",chart:\"${chart}\",family:\"${family}\",status:\"${status}\",old_status:\"${old_status}\",value:${value},old_value:${old_value},duration:${duration},non_clear_duration:${non_clear_duration},units:\"${units}\",info:\"${info}\"}" \
-			"${KAFKA_URL}")
-
-		if [ "${httpcode}" = "204" ]; then
-			info "sent kafka data for: ${host} ${chart}.${name} is ${status} and ip '${KAFKA_SENDER_IP}'"
-			sent=$((sent + 1))
-		else
-			error "failed to send kafka data for: ${host} ${chart}.${name} is ${status} and ip '${KAFKA_SENDER_IP}' with HTTP error code ${httpcode}."
-		fi
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# pagerduty.com sender
-
-send_pd() {
-	local recipients="${1}" sent=0
-	unset t
-	case ${status} in
-	CLEAR) t='resolve' ;;
-	WARNING) t='trigger' ;;
-	CRITICAL) t='trigger' ;;
-	esac
-
-	if [ ${SEND_PD} = "YES" ] && [ -n "${t}" ]; then
-		for PD_SERVICE_KEY in ${recipients}; do
-			d="${status} ${name} = ${value_string} - ${host}, ${family}"
-			payload="$(
-				cat <<EOF
-            {
-              "service_key": "${PD_SERVICE_KEY}",
-              "event_type": "${t}",
-              "incident_key" : "${alarm_id}",
-              "description": "${d}",
-              "details": {
-                "value_w_units": "${value_string}",
-                "when": "${when}",
-                "duration" : "${duration}",
-                "roles": "${roles}",
-                "alarm_id" : "${alarm_id}",
-                "name" : "${name}",
-                "chart" : "${chart}",
-                "family" : "${family}",
-                "status" : "${status}",
-                "old_status" : "${old_status}",
-                "value" : "${value}",
-                "old_value" : "${old_value}",
-                "src" : "${src}",
-                "non_clear_duration" : "${non_clear_duration}",
-                "units" : "${units}",
-                "info" : "${info}"
-              }
-            }
-EOF
-			)"
-			httpcode=$(docurl -X POST --data "${payload}" "https://events.pagerduty.com/generic/2010-04-15/create_event.json")
-			if [ "${httpcode}" = "200" ]; then
-				info "sent pagerduty notification for: ${host} ${chart}.${name} is ${status}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send pagerduty notification for: ${host} ${chart}.${name} is ${status}, with HTTP error code ${httpcode}."
-			fi
-		done
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# twilio sender
-
-send_twilio() {
-	local accountsid="${1}" accounttoken="${2}" twilionumber="${3}" recipients="${4}" title="${5}" message="${6}" httpcode sent=0 user
-	if [ "${SEND_TWILIO}" = "YES" ] && [ -n "${accountsid}" ] && [ -n "${accounttoken}" ] && [ -n "${twilionumber}" ] && [ -n "${recipients}" ] && [ -n "${message}" ] && [ -n "${title}" ]; then
-		#https://www.twilio.com/packages/labs/code/bash/twilio-sms
-		for user in ${recipients}; do
-			httpcode=$(docurl -X POST \
-				--data-urlencode "From=${twilionumber}" \
-				--data-urlencode "To=${user}" \
-				--data-urlencode "Body=${title} ${message}" \
-				-u "${accountsid}:${accounttoken}" \
-				"https://api.twilio.com/2010-04-01/Accounts/${accountsid}/Messages.json")
-
-			if [ "${httpcode}" = "201" ]; then
-				info "sent Twilio SMS for: ${host} ${chart}.${name} is ${status} to '${user}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send Twilio SMS for: ${host} ${chart}.${name} is ${status} to '${user}' with HTTP error code ${httpcode}."
-			fi
-		done
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# hipchat sender
-
-send_hipchat() {
-	local authtoken="${1}" recipients="${2}" message="${3}" httpcode sent=0 room color msg_format notify
-
-	# remove <small></small> from the message
-	message="${message//<small>/}"
-	message="${message//<\/small>/}"
-
-	if [ "${SEND_HIPCHAT}" = "YES" ] && [ -n "${HIPCHAT_SERVER}" ] && [ -n "${authtoken}" ] && [ -n "${recipients}" ] && [ -n "${message}" ]; then
-		# Valid values: html, text.
-		# Defaults to 'html'.
-		msg_format="html"
-
-		# Background color for message. Valid values: yellow, green, red, purple, gray, random. Defaults to 'yellow'.
-		case "${status}" in
-		WARNING) color="yellow" ;;
-		CRITICAL) color="red" ;;
-		CLEAR) color="green" ;;
-		*) color="gray" ;;
-		esac
-
-		# Whether this message should trigger a user notification (change the tab color, play a sound, notify mobile phones, etc).
-		# Each recipient's notification preferences are taken into account.
-		# Defaults to false.
-		notify="true"
-
-		for room in ${recipients}; do
-			httpcode=$(docurl -X POST \
-				-H "Content-type: application/json" \
-				-H "Authorization: Bearer ${authtoken}" \
-				-d "{\"color\": \"${color}\", \"from\": \"${host}\", \"message_format\": \"${msg_format}\", \"message\": \"${message}\", \"notify\": \"${notify}\"}" \
-				"https://${HIPCHAT_SERVER}/v2/room/${room}/notification")
-
-			if [ "${httpcode}" = "204" ]; then
-				info "sent HipChat notification for: ${host} ${chart}.${name} is ${status} to '${room}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send HipChat notification for: ${host} ${chart}.${name} is ${status} to '${room}' with HTTP error code ${httpcode}."
-			fi
-		done
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# messagebird sender
-
-send_messagebird() {
-	local accesskey="${1}" messagebirdnumber="${2}" recipients="${3}" title="${4}" message="${5}" httpcode sent=0 user
-	if [ "${SEND_MESSAGEBIRD}" = "YES" ] && [ -n "${accesskey}" ] && [ -n "${messagebirdnumber}" ] && [ -n "${recipients}" ] && [ -n "${message}" ] && [ -n "${title}" ]; then
-		#https://developers.messagebird.com/docs/messaging
-		for user in ${recipients}; do
-			httpcode=$(docurl -X POST \
-				--data-urlencode "originator=${messagebirdnumber}" \
-				--data-urlencode "recipients=${user}" \
-				--data-urlencode "body=${title} ${message}" \
-				--data-urlencode "datacoding=auto" \
-				-H "Authorization: AccessKey ${accesskey}" \
-				"https://rest.messagebird.com/messages")
-
-			if [ "${httpcode}" = "201" ]; then
-				info "sent Messagebird SMS for: ${host} ${chart}.${name} is ${status} to '${user}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send Messagebird SMS for: ${host} ${chart}.${name} is ${status} to '${user}' with HTTP error code ${httpcode}."
-			fi
-		done
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# kavenegar sender
-
-send_kavenegar() {
-	local API_KEY="${1}" kavenegarsender="${2}" recipients="${3}" title="${4}" message="${5}" httpcode sent=0 user
-	if [ "${SEND_KAVENEGAR}" = "YES" ] && [ -n "${API_KEY}" ] && [ -n "${kavenegarsender}" ] && [ -n "${recipients}" ] && [ -n "${message}" ] && [ -n "${title}" ]; then
-		# http://api.kavenegar.com/v1/{API-KEY}/sms/send.json
-		for user in ${recipients}; do
-			httpcode=$(docurl -X POST http://api.kavenegar.com/v1/${API_KEY}/sms/send.json \
-				--data-urlencode "sender=${kavenegarsender}" \
-				--data-urlencode "receptor=${user}" \
-				--data-urlencode "message=${title} ${message}")
-
-			if [ "${httpcode}" = "200" ]; then
-				info "sent Kavenegar SMS for: ${host} ${chart}.${name} is ${status} to '${user}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send Kavenegar SMS for: ${host} ${chart}.${name} is ${status} to '${user}' with HTTP error code ${httpcode}."
-			fi
-		done
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# telegram sender
-
-send_telegram() {
-	local bottoken="${1}" chatids="${2}" message="${3}" httpcode sent=0 chatid emoji disableNotification=""
-
-	if [ "${status}" = "CLEAR" ]; then disableNotification="--data-urlencode disable_notification=true"; fi
-
-	case "${status}" in
-	WARNING) emoji="⚠️" ;;
-	CRITICAL) emoji="🔴" ;;
-	CLEAR) emoji="✅" ;;
-	*) emoji="⚪️" ;;
-	esac
-
-	if [ "${SEND_TELEGRAM}" = "YES" ] && [ -n "${bottoken}" ] && [ -n "${chatids}" ] && [ -n "${message}" ]; then
-		for chatid in ${chatids}; do
-			# https://core.telegram.org/bots/api#sendmessage
-			httpcode=$(docurl ${disableNotification} \
-				--data-urlencode "parse_mode=HTML" \
-				--data-urlencode "disable_web_page_preview=true" \
-				--data-urlencode "text=${emoji} ${message}" \
-				"https://api.telegram.org/bot${bottoken}/sendMessage?chat_id=${chatid}")
-
-			if [ "${httpcode}" = "200" ]; then
-				info "sent telegram notification for: ${host} ${chart}.${name} is ${status} to '${chatid}'"
-				sent=$((sent + 1))
-			elif [ "${httpcode}" = "401" ]; then
-				error "failed to send telegram notification for: ${host} ${chart}.${name} is ${status} to '${chatid}': Wrong bot token."
-			else
-				error "failed to send telegram notification for: ${host} ${chart}.${name} is ${status} to '${chatid}' with HTTP error code ${httpcode}."
-			fi
-		done
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# Microsoft Team sender
-
-send_msteam() {
-
-	local webhook="${1}" channels="${2}" httpcode sent=0 channel color payload
-
-	[ "${SEND_MSTEAM}" != "YES" ] && return 1
-
-	case "${status}" in
-	WARNING) icon="${MSTEAM_ICON_WARNING}" && color="${MSTEAM_COLOR_WARNING}" ;;
-	CRITICAL) icon="${MSTEAM_ICON_CRITICAL}" && color="${MSTEAM_COLOR_CRITICAL}" ;;
-	CLEAR) icon="${MSTEAM_ICON_CLEAR}" && color="${MSTEAM_COLOR_CLEAR}" ;;
-	*) icon="${MSTEAM_ICON_DEFAULT}" && color="${MSTEAM_COLOR_DEFAULT}" ;;
-	esac
-
-	for channel in ${channels}; do
-		## More details are available here regarding the payload syntax options : https://docs.microsoft.com/en-us/outlook/actionable-messages/message-card-reference
-		## Online designer : https://acdesignerbeta.azurewebsites.net/
-		payload="$(
-			cat <<EOF
-        {
-            "@context": "http://schema.org/extensions",
-            "@type": "MessageCard",
-            "themeColor": "${color}",
-            "title": "$icon Alert ${status} from netdata for ${host}",
-            "text": "${host} ${status_message}, ${chart} (_${family}_), *${alarm}*",
-            "potentialAction": [
-            {
-                "@type": "OpenUri",
-                "name": "Netdata",
-                "targets": [
-                { "os": "default", "uri": "${goto_url}" }
-                ]
-            }
-            ]
-        }
-EOF
-		)"
-
-		# Replacing in the webhook CHANNEL string by the MS Teams channel name from conf file.
-		webhook="${webhook//CHANNEL/${channel}}"
-
-		httpcode=$(docurl -H "Content-Type: application/json" -d "${payload}" "${webhook}")
-
-		if [ "${httpcode}" = "200" ]; then
-			info "sent Microsoft team notification for: ${host} ${chart}.${name} is ${status} to '${webhook}'"
-			sent=$((sent + 1))
-		else
-			error "failed to send Microsoft team notification for: ${host} ${chart}.${name} is ${status} to '${webhook}', with HTTP error code ${httpcode}."
-		fi
-	done
-
-	[ ${sent} -gt 0 ] && return 0
-
-	return 1
-}
-
-# slack sender
-
-send_slack() {
-	local webhook="${1}" channels="${2}" httpcode sent=0 channel color payload
-
-	[ "${SEND_SLACK}" != "YES" ] && return 1
-
-	case "${status}" in
-	WARNING) color="warning" ;;
-	CRITICAL) color="danger" ;;
-	CLEAR) color="good" ;;
-	*) color="#777777" ;;
-	esac
-
-	for channel in ${channels}; do
-		# Default entry in the recipient is without a hash in front (backwards-compatible). Accept specification of channel or user.
-		if [ "${channel::1}" != "#" ] && [ "${channel::1}" != "@" ]; then channel="#$channel"; fi
-
-		# If channel is equal to "#" then do not send the channel attribute at all. Slack also defines channels and users in webhooks.
-		if [ "${channel}" = "#" ]; then
-			ch=""
-			chstr="without specifying a channel"
-		else
-			ch="\"channel\": \"${channel}\","
-			chstr="to '${channel}'"
-		fi
-
-		payload="$(
-			cat <<EOF
-        {
-            $ch
-            "username": "netdata on ${host}",
-            "icon_url": "${images_base_url}/images/banner-icon-144x144.png",
-            "text": "${host} ${status_message}, \`${chart}\` (_${family}_), *${alarm}*",
-            "attachments": [
-                {
-                    "fallback": "${alarm} - ${chart} (${family}) - ${info}",
-                    "color": "${color}",
-                    "title": "${alarm}",
-                    "title_link": "${goto_url}",
-                    "text": "${info}",
-                    "fields": [
-                        {
-                            "title": "${chart}",
-                            "short": true
-                        },
-                        {
-                            "title": "${family}",
-                            "short": true
-                        }
-                    ],
-                    "thumb_url": "${image}",
-                    "footer": "by ${host}",
-                    "ts": ${when}
-                }
-            ]
-        }
-EOF
-		)"
-
-		httpcode=$(docurl -X POST --data-urlencode "payload=${payload}" "${webhook}")
-		if [ "${httpcode}" = "200" ]; then
-			info "sent slack notification for: ${host} ${chart}.${name} is ${status} ${chstr}"
-			sent=$((sent + 1))
-		else
-			error "failed to send slack notification for: ${host} ${chart}.${name} is ${status} ${chstr}, with HTTP error code ${httpcode}."
-		fi
-	done
-
-	[ ${sent} -gt 0 ] && return 0
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# rocketchat sender
-
-send_rocketchat() {
-	local webhook="${1}" channels="${2}" httpcode sent=0 channel color payload
-
-	[ "${SEND_ROCKETCHAT}" != "YES" ] && return 1
-
-	case "${status}" in
-	WARNING) color="warning" ;;
-	CRITICAL) color="danger" ;;
-	CLEAR) color="good" ;;
-	*) color="#777777" ;;
-	esac
-
-	for channel in ${channels}; do
-		payload="$(
-			cat <<EOF
-        {
-            "channel": "#${channel}",
-            "alias": "netdata on ${host}",
-            "avatar": "${images_base_url}/images/banner-icon-144x144.png",
-            "text": "${host} ${status_message}, \`${chart}\` (_${family}_), *${alarm}*",
-            "attachments": [
-                {
-                    "color": "${color}",
-                    "title": "${alarm}",
-                    "title_link": "${goto_url}",
-                    "text": "${info}",
-                    "fields": [
-                        {
-                            "title": "${chart}",
-                            "short": true,
-                            "value": "chart"
-                        },
-                        {
-                            "title": "${family}",
-                            "short": true,
-                            "value": "family"
-                        }
-                    ],
-                    "thumb_url": "${image}",
-                    "ts": "${when}"
-                }
-            ]
-        }
-EOF
-		)"
-
-		httpcode=$(docurl -X POST --data-urlencode "payload=${payload}" "${webhook}")
-		if [ "${httpcode}" = "200" ]; then
-			info "sent rocketchat notification for: ${host} ${chart}.${name} is ${status} to '${channel}'"
-			sent=$((sent + 1))
-		else
-			error "failed to send rocketchat notification for: ${host} ${chart}.${name} is ${status} to '${channel}', with HTTP error code ${httpcode}."
-		fi
-	done
-
-	[ ${sent} -gt 0 ] && return 0
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# alerta sender
-
-send_alerta() {
-	local webhook="${1}" channels="${2}" httpcode sent=0 channel severity resource event payload auth
-
-	[ "${SEND_ALERTA}" != "YES" ] && return 1
-
-	case "${status}" in
-	CRITICAL) severity="critical" ;;
-	WARNING) severity="warning" ;;
-	CLEAR) severity="cleared" ;;
-	*) severity="indeterminate" ;;
-	esac
-
-	if [[ ${chart} == httpcheck* ]]; then
-		resource=$chart
-		event=$name
-	else
-		resource="${host}:${family}"
-		event="${chart}.${name}"
-	fi
-
-	for channel in ${channels}; do
-		payload="$(
-			cat <<EOF
-        {
-            "resource": "${resource}",
-            "event": "${event}",
-            "environment": "${channel}",
-            "severity": "${severity}",
-            "service": ["Netdata"],
-            "group": "Performance",
-            "value": "${value_string}",
-            "text": "${info}",
-            "tags": ["alarm_id:${alarm_id}"],
-            "attributes": {
-                "roles": "${roles}",
-                "name": "${name}",
-                "chart": "${chart}",
-                "family": "${family}",
-                "source": "${src}",
-                "moreInfo": "<a href=\"${goto_url}\">View Netdata</a>"
-            },
-            "origin": "netdata/${host}",
-            "type": "netdataAlarm",
-            "rawData": "${BASH_ARGV[@]}"
-        }
-EOF
-		)"
-
-		if [ -n "${ALERTA_API_KEY}" ]; then
-			auth="Key ${ALERTA_API_KEY}"
-		fi
-
-		httpcode=$(docurl -X POST "${webhook}/alert" -H "Content-Type: application/json" -H "Authorization: $auth" --data "${payload}")
-
-		if [ "${httpcode}" = "200" ] || [ "${httpcode}" = "201" ]; then
-			info "sent alerta notification for: ${host} ${chart}.${name} is ${status} to '${channel}'"
-			sent=$((sent + 1))
-		elif [ "${httpcode}" = "202" ]; then
-			info "suppressed alerta notification for: ${host} ${chart}.${name} is ${status} to '${channel}'"
-		else
-			error "failed to send alerta notification for: ${host} ${chart}.${name} is ${status} to '${channel}', with HTTP error code ${httpcode}."
-		fi
-	done
-
-	[ ${sent} -gt 0 ] && return 0
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# flock sender
-
-send_flock() {
-	local webhook="${1}" channels="${2}" httpcode sent=0 channel color payload
-
-	[ "${SEND_FLOCK}" != "YES" ] && return 1
-
-	case "${status}" in
-	WARNING) color="warning" ;;
-	CRITICAL) color="danger" ;;
-	CLEAR) color="good" ;;
-	*) color="#777777" ;;
-	esac
-
-	for channel in ${channels}; do
-		httpcode=$(docurl -X POST "${webhook}" -H "Content-Type: application/json" -d "{
-            \"sendAs\": {
-                \"name\" : \"netdata on ${host}\",
-                \"profileImage\" : \"${images_base_url}/images/banner-icon-144x144.png\"
-            },
-            \"text\": \"${host} *${status_message}*\",
-            \"timestamp\": \"${when}\",
-            \"attachments\": [
-                {
-                    \"description\": \"${chart} (${family}) - ${info}\",
-                    \"color\": \"${color}\",
-                    \"title\": \"${alarm}\",
-                    \"url\": \"${goto_url}\",
-                    \"text\": \"${info}\",
-                    \"views\": {
-                        \"image\": {
-                            \"original\": { \"src\": \"${image}\", \"width\": 400, \"height\": 400 },
-                            \"thumbnail\": { \"src\": \"${image}\", \"width\": 50, \"height\": 50 },
-                            \"filename\": \"${image}\"
-                            }
-                    }
-                }
-            ]
-        }")
-		if [ "${httpcode}" = "200" ]; then
-			info "sent flock notification for: ${host} ${chart}.${name} is ${status} to '${channel}'"
-			sent=$((sent + 1))
-		else
-			error "failed to send flock notification for: ${host} ${chart}.${name} is ${status} to '${channel}', with HTTP error code ${httpcode}."
-		fi
-	done
-
-	[ ${sent} -gt 0 ] && return 0
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# discord sender
-
-send_discord() {
-	local webhook="${1}/slack" channels="${2}" httpcode sent=0 channel color payload username
-
-	[ "${SEND_DISCORD}" != "YES" ] && return 1
-
-	case "${status}" in
-	WARNING) color="warning" ;;
-	CRITICAL) color="danger" ;;
-	CLEAR) color="good" ;;
-	*) color="#777777" ;;
-	esac
-
-	for channel in ${channels}; do
-		username="netdata on ${host}"
-		[ ${#username} -gt 32 ] && username="${username:0:29}..."
-
-		payload="$(
-			cat <<EOF
-        {
-            "channel": "#${channel}",
-            "username": "${username}",
-            "text": "${host} ${status_message}, \`${chart}\` (_${family}_), *${alarm}*",
-            "icon_url": "${images_base_url}/images/banner-icon-144x144.png",
-            "attachments": [
-                {
-                    "color": "${color}",
-                    "title": "${alarm}",
-                    "title_link": "${goto_url}",
-                    "text": "${info}",
-                    "fields": [
-                        {
-                            "title": "${chart}",
-                            "value": "${family}"
-                        }
-                    ],
-                    "thumb_url": "${image}",
-                    "footer_icon": "${images_base_url}/images/banner-icon-144x144.png",
-                    "footer": "${host}",
-                    "ts": ${when}
-                }
-            ]
-        }
-EOF
-		)"
-
-		httpcode=$(docurl -X POST --data-urlencode "payload=${payload}" "${webhook}")
-		if [ "${httpcode}" = "200" ]; then
-			info "sent discord notification for: ${host} ${chart}.${name} is ${status} to '${channel}'"
-			sent=$((sent + 1))
-		else
-			error "failed to send discord notification for: ${host} ${chart}.${name} is ${status} to '${channel}', with HTTP error code ${httpcode}."
-		fi
-	done
-
-	[ ${sent} -gt 0 ] && return 0
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# fleep sender
-
-send_fleep() {
-	local httpcode sent=0 webhooks="${1}" data message
-	if [ "${SEND_FLEEP}" = "YES" ]; then
-		message="${host} ${status_message}, \`${chart}\` (${family}), *${alarm}*\\n${info}"
-
-		for hook in ${webhooks}; do
-			data="{ "
-			data="${data} 'message': '${message}', "
-			data="${data} 'user': '${FLEEP_SENDER}' "
-			data="${data} }"
-
-			httpcode=$(docurl -X POST --data "${data}" "https://fleep.io/hook/${hook}")
-
-			if [ "${httpcode}" = "200" ]; then
-				info "sent fleep data for: ${host} ${chart}.${name} is ${status} and user '${FLEEP_SENDER}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send fleep data for: ${host} ${chart}.${name} is ${status} and user '${FLEEP_SENDER}' with HTTP error code ${httpcode}."
-			fi
-		done
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# Prowl sender
-
-send_prowl() {
-	local httpcode sent=0 data message keys prio=0 alarm_url event
-	if [ "${SEND_PROWL}" = "YES" ]; then
-		message="$(urlencode "${host} ${status_message}, \`${chart}\` (${family}), *${alarm}*\\n${info}")"
-		message="description=${message}"
-		keys="$(urlencode "$(echo "${1}" | tr ' ' ,)")"
-		keys="apikey=${keys}"
-		app="application=Netdata"
-
-		case "${status}" in
-		CRITICAL)
-			prio=2
-			;;
-		WARNING)
-			prio=1
-			;;
-		esac
-		prio="priority=${prio}"
-
-		alarm_url="$(urlencode ${goto_url})"
-		alarm_url="url=${alarm_url}"
-		event="$(urlencode "${host} ${status_message}")"
-		event="event=${event}"
-
-		data="${keys}&${prio}&${alarm_url}&${app}&${event}&${message}"
-
-		httpcode=$(docurl -X POST --data "${data}" "https://api.prowlapp.com/publicapi/add")
-
-		if [ "${httpcode}" = "200" ]; then
-			info "sent prowl data for: ${host} ${chart}.${name} is ${status}"
-			sent=1
-		else
-			error "failed to send prowl data for: ${host} ${chart}.${name} is ${status} with with error code ${httpcode}."
-		fi
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# irc sender
-
-send_irc() {
-	local NICKNAME="${1}" REALNAME="${2}" CHANNELS="${3}" NETWORK="${4}" SERVERNAME="${5}" MESSAGE="${6}" sent=0 channel color send_alarm reply_codes error
-
-	if [ "${SEND_IRC}" = "YES" ] && [ -n "${NICKNAME}" ] && [ -n "${REALNAME}" ] && [ -n "${CHANNELS}" ] && [ -n "${NETWORK}" ] && [ -n "${SERVERNAME}" ]; then
-		case "${status}" in
-		WARNING) color="warning" ;;
-		CRITICAL) color="danger" ;;
-		CLEAR) color="good" ;;
-		*) color="#777777" ;;
-		esac
-
-		SNDMESSAGE="${MESSAGE//$'\n'/", "}"
-		for CHANNEL in ${CHANNELS}; do
-			error=0
-			send_alarm=$(echo -e "USER ${NICKNAME} guest ${REALNAME} ${SERVERNAME}\\nNICK ${NICKNAME}\\nJOIN ${CHANNEL}\\nPRIVMSG ${CHANNEL} :${SNDMESSAGE}\\nQUIT\\n" \  | nc "${NETWORK}" 6667)
-			reply_codes=$(echo "${send_alarm}" | cut -d ' ' -f 2 | grep -o '[0-9]*')
-			for code in ${reply_codes}; do
-				if [ "${code}" -ge 400 ] && [ "${code}" -le 599 ]; then
-					error=1
-					break
-				fi
-			done
-
-			if [ "${error}" -eq 0 ]; then
-				info "sent irc notification for: ${host} ${chart}.${name} is ${status} to '${CHANNEL}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send irc notification for: ${host} ${chart}.${name} is ${status} to '${CHANNEL}', with error code ${code}."
-			fi
-		done
-	fi
-
-	[ ${sent} -gt 0 ] && return 0
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# Amazon SNS sender
-
-send_awssns() {
-	local targets="${1}" message='' sent=0 region=''
-	local default_format="${status} on ${host} at ${date}: ${chart} ${value_string}"
-
-	[ "${SEND_AWSSNS}" = "YES" ] || return 1
-
-	message=${AWSSNS_MESSAGE_FORMAT:-${default_format}}
-
-	for target in ${targets}; do
-		# Extract the region from the target ARN.  We need to explicitly specify the region so that it matches up correctly.
-		region="$(echo ${target} | cut -f 4 -d ':')"
-		if ${aws} sns publish --region "${region}" --subject "${host} ${status_message} - ${name//_/ } - ${chart}" --message "${message}" --target-arn ${target} &>/dev/null; then
-			info "sent Amazon SNS notification for: ${host} ${chart}.${name} is ${status} to '${target}'"
-			sent=$((sent + 1))
-		else
-			error "failed to send Amazon SNS notification for: ${host} ${chart}.${name} is ${status} to '${target}'"
-		fi
-	done
-
-	[ ${sent} -gt 0 ] && return 0
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# syslog sender
-
-send_syslog() {
-	local facility=${SYSLOG_FACILITY:-"local6"} level='info' targets="${1}"
-	local priority='' message='' host='' port='' prefix=''
-	local temp1='' temp2=''
-
-	[ "${SEND_SYSLOG}" = "YES" ] || return 1
-
-	if [ "${status}" = "CRITICAL" ]; then
-		level='crit'
-	elif [ "${status}" = "WARNING" ]; then
-		level='warning'
-	fi
-
-	for target in ${targets}; do
-		priority="${facility}.${level}"
-		message=''
-		host=''
-		port=''
-		prefix=''
-		temp1=''
-		temp2=''
-
-		prefix=$(echo ${target} | cut -d '/' -f 2)
-		temp1=$(echo ${target} | cut -d '/' -f 1)
-
-		if [ ${prefix} != ${temp1} ]; then
-			if (echo ${temp1} | grep -q '@'); then
-				temp2=$(echo ${temp1} | cut -d '@' -f 1)
-				host=$(echo ${temp1} | cut -d '@' -f 2)
-
-				if [ ${temp2} != ${host} ]; then
-					priority=${temp2}
-				fi
-
-				port=$(echo ${host} | rev | cut -d ':' -f 1 | rev)
-
-				if (echo ${host} | grep -E -q '\[.*\]'); then
-					if (echo ${port} | grep -q ']'); then
-						port=''
-					else
-						host=$(echo ${host} | rev | cut -d ':' -f 2- | rev)
-					fi
-				else
-					if [ ${port} = ${host} ]; then
-						port=''
-					else
-						host=$(echo ${host} | cut -d ':' -f 1)
-					fi
-				fi
-			else
-				priority=${temp1}
-			fi
-		fi
-
-		message="${prefix} ${status} on ${host} at ${date}: ${chart} ${value_string}"
-
-		if [ ${host} ]; then
-			logger_options="${logger_options} -n ${host}"
-			if [ ${port} ]; then
-				logger_options="${logger_options} -P ${port}"
-			fi
-		fi
-
-		${logger} -p ${priority} ${logger_options} "${message}"
-	done
-
-	return $?
-}
-
-# -----------------------------------------------------------------------------
-# SMS sender
-
-send_sms() {
-	local recipients="${1}" errcode errmessage sent=0
-
-    # Human readable SMS
-    local msg="${host} ${status_message}: ${chart} (${family}), ${alarm}"
-
-    # limit it to 160 characters
-    msg="${msg:0:160}"
-
-	if [ "${SEND_SMS}" = "YES" ] && [ -n "${sendsms}" ] && [ -n "${recipients}" ] && [ -n "${msg}" ]; then
-		# http://api.kavenegar.com/v1/{API-KEY}/sms/send.json
-		for phone in ${recipients}; do
-			errmessage=$($sendsms $phone "$msg" 2>&1)
-			errcode=$?
-			if [ ${errcode} -eq 0 ]; then
-				info "sent smstools3 SMS for: ${host} ${chart}.${name} is ${status} to '${user}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send smstools3 SMS for: ${host} ${chart}.${name} is ${status} to '${user}' with error code ${errcode}: ${errmessage}."
-			fi
-		done
-
-		[ ${sent} -gt 0 ] && return 0
-	fi
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# hangouts sender
-
-send_hangouts() {
-	local rooms="${1}" httpcode sent=0 room color payload webhook
-
-	[ "${SEND_HANGOUTS}" != "YES" ] && return 1
-
-	case "${status}" in
-	WARNING) color="#ffa700" ;;
-	CRITICAL) color="#d62d20" ;;
-	CLEAR) color="#008744" ;;
-	*) color="#777777" ;;
-	esac
-
-	for room in ${rooms}; do
-		if [ -z "${HANGOUTS_WEBHOOK_URI[$room]}" ] ; then
-			info "Can't send Hangouts notification for: ${host} ${chart}.${name} to room ${room}. HANGOUTS_WEBHOOK_URI[$room] not defined"
-		else
-			webhook="${HANGOUTS_WEBHOOK_URI[$room]}"
-			payload="$(
-				cat <<EOF
-				{
-					"cards": [
-						{
-							"header": {
-								"title": "Netdata on ${host}",
-								"imageUrl": "${images_base_url}/images/banner-icon-144x144.png",
-								"imageStyle": "IMAGE"
-							},
-							"sections": [
-								{
-									"header": "<b>${host}</b>",
-									"widgets": [
-										{
-											"keyValue": {
-												"topLabel": "Status Message",
-												"content": "<b>${status_message}</b>",
-												"contentMultiline": "true",
-												"iconUrl": "${image}",
-												"onClick": {
-													"openLink": {
-														"url": "${goto_url}"
-													}
-												}
-											}
-										},
-										{
-											"keyValue": {
-												"topLabel": "${chart} | ${family}",
-												"content": "<font color=${color}>${alarm}</font>",
-												"contentMultiline": "true"
-											}
-										}
-									]
-								},
-								{
-									"widgets": [
-										{
-											"textParagraph": {
-											"text": "<font color=\"#0057e7\">@ ${date}\n<b>${info}</b></font>"
-											}
-										}
-									]
-								},
-								{
-									"widgets": [
-										{
-											"buttons": [
-												{
-													"textButton": {
-														"text": "Go to ${host}",
-														"onClick": {
-															"openLink": {
-																"url": "${goto_url}"
-															}
-														}
-													}
-												}
-											]
-										}
-									]
-								}
-							]
-						}
-					]
-				}
-EOF
-				)"
-
-			httpcode=$(docurl -H "Content-Type: application/json" -X POST -d "${payload}" "${webhook}")
-
-			if [ "${httpcode}" = "200" ]; then
-				info "sent hangouts notification for: ${host} ${chart}.${name} is ${status} to '${room}'"
-				sent=$((sent + 1))
-			else
-				error "failed to send hangouts notification for: ${host} ${chart}.${name} is ${status} to '${room}', with HTTP error code ${httpcode}."
-			fi
-		fi
-	done
-
-	[ ${sent} -gt 0 ] && return 0
-
-	return 1
-}
-
-# -----------------------------------------------------------------------------
-# prepare the content of the notification
-
-# the url to send the user on click
-urlencode "${args_host}" >/dev/null
-url_host="${REPLY}"
-urlencode "${chart}" >/dev/null
-url_chart="${REPLY}"
-urlencode "${family}" >/dev/null
-url_family="${REPLY}"
-urlencode "${name}" >/dev/null
-url_name="${REPLY}"
-
-redirect_params="host=${url_host}&chart=${url_chart}&family=${url_family}&alarm=${url_name}&alarm_unique_id=${unique_id}&alarm_id=${alarm_id}&alarm_event_id=${event_id}&alarm_when=${when}"
-GOTOCLOUD=0
-
-if [ "${NETDATA_REGISTRY_URL}" == "https://registry.my-netdata.io" ]; then
-	if [ -z "${NETDATA_REGISTRY_UNIQUE_ID}" ]; then
-		if [ -f "/var/lib/netdata/registry/netdata.public.unique.id" ]; then
-			NETDATA_REGISTRY_UNIQUE_ID="$(cat "/var/lib/netdata/registry/netdata.public.unique.id")"
-		fi
-	fi
-	if [ -n "${NETDATA_REGISTRY_UNIQUE_ID}" ]; then
-		GOTOCLOUD=1
-	fi
-fi
-
-if [ ${GOTOCLOUD} -eq 0 ]; then
-	goto_url="${NETDATA_REGISTRY_URL}/goto-host-from-alarm.html?${redirect_params}"
-else
-	goto_url="${NETDATA_REGISTRY_CLOUD_BASE_URL}/alarms/redirect?agentID=${NETDATA_REGISTRY_UNIQUE_ID}&${redirect_params}"
-fi
-
-# the severity of the alarm
-severity="${status}"
-
-# the time the alarm was raised
-duration4human ${duration} >/dev/null
-duration_txt="${REPLY}"
-duration4human ${non_clear_duration} >/dev/null
-non_clear_duration_txt="${REPLY}"
-raised_for="(was ${old_status,,} for ${duration_txt})"
-
-# the key status message
-status_message="status unknown"
-
-# the color of the alarm
-color="grey"
-
-# the alarm value
-alarm="${name//_/ } = ${value_string}"
-
-# the image of the alarm
-image="${images_base_url}/images/banner-icon-144x144.png"
-
-# prepare the title based on status
-case "${status}" in
-CRITICAL)
-	image="${images_base_url}/images/alert-128-red.png"
-	status_message="is critical"
-	color="#ca414b"
-	;;
-
-WARNING)
-	image="${images_base_url}/images/alert-128-orange.png"
-	status_message="needs attention"
-	color="#ffc107"
-	;;
-
-CLEAR)
-	image="${images_base_url}/images/check-mark-2-128-green.png"
-	status_message="recovered"
-	color="#77ca6d"
-	;;
-esac
-
-if [ "${status}" = "CLEAR" ]; then
-	severity="Recovered from ${old_status}"
-	if [ ${non_clear_duration} -gt ${duration} ]; then
-		raised_for="(alarm was raised for ${non_clear_duration_txt})"
-	fi
-
-	# don't show the value when the status is CLEAR
-	# for certain alarms, this value might not have any meaning
-	alarm="${name//_/ } ${raised_for}"
-
-elif { [ "${old_status}" = "WARNING" ] && [ "${status}" = "CRITICAL" ]; }; then
-	severity="Escalated to ${status}"
-	if [ ${non_clear_duration} -gt ${duration} ]; then
-		raised_for="(alarm is raised for ${non_clear_duration_txt})"
-	fi
-
-elif { [ "${old_status}" = "CRITICAL" ] && [ "${status}" = "WARNING" ]; }; then
-	severity="Demoted to ${status}"
-	if [ ${non_clear_duration} -gt ${duration} ]; then
-		raised_for="(alarm is raised for ${non_clear_duration_txt})"
-	fi
-
-else
-	raised_for=
-fi
-
-# prepare HTML versions of elements
-info_html=
-[ -n "${info}" ] && info_html=" <small><br/>${info}</small>"
-
-raised_for_html=
-[ -n "${raised_for}" ] && raised_for_html="<br/><small>${raised_for}</small>"
-
-# -----------------------------------------------------------------------------
-# send the slack notification
-
-# slack aggregates posts from the same username
-# so we use "${host} ${status}" as the bot username, to make them diff
-
-send_slack "${SLACK_WEBHOOK_URL}" "${to_slack}"
-SENT_SLACK=$?
-
-# -----------------------------------------------------------------------------
-# send the hangouts notification
-
-# hangouts aggregates posts from the same room
-# so we use "${host} ${status}" as the room, to make them diff
-
-send_hangouts "${to_hangouts}"
-SENT_HANGOUTS=$?
-
-# -----------------------------------------------------------------------------
-# send the Microsoft notification
-
-# Microsoft team aggregates posts from the same username
-# so we use "${host} ${status}" as the bot username, to make them diff
-
-send_msteam "${MSTEAM_WEBHOOK_URL}" "${to_msteam}"
-SENT_MSTEAM=$?
-
-# -----------------------------------------------------------------------------
-# send the rocketchat notification
-
-# rocketchat aggregates posts from the same username
-# so we use "${host} ${status}" as the bot username, to make them diff
-
-send_rocketchat "${ROCKETCHAT_WEBHOOK_URL}" "${to_rocketchat}"
-SENT_ROCKETCHAT=$?
-
-# -----------------------------------------------------------------------------
-# send the alerta notification
-
-# alerta aggregates posts from the same username
-# so we use "${host} ${status}" as the bot username, to make them diff
-
-send_alerta "${ALERTA_WEBHOOK_URL}" "${to_alerta}"
-SENT_ALERTA=$?
-
-# -----------------------------------------------------------------------------
-# send the flock notification
-
-# flock aggregates posts from the same username
-# so we use "${host} ${status}" as the bot username, to make them diff
-
-send_flock "${FLOCK_WEBHOOK_URL}" "${to_flock}"
-SENT_FLOCK=$?
-
-# -----------------------------------------------------------------------------
-# send the discord notification
-
-# discord aggregates posts from the same username
-# so we use "${host} ${status}" as the bot username, to make them diff
-
-send_discord "${DISCORD_WEBHOOK_URL}" "${to_discord}"
-SENT_DISCORD=$?
-
-# -----------------------------------------------------------------------------
-# send the pushover notification
-
-send_pushover "${PUSHOVER_APP_TOKEN}" "${to_pushover}" "${when}" "${goto_url}" "${status}" "${host} ${status_message} - ${name//_/ } - ${chart}" "
-<font color=\"${color}\"><b>${alarm}</b></font>${info_html}<br/>&nbsp;
-<small><b>${chart}</b><br/>Chart<br/>&nbsp;</small>
-<small><b>${family}</b><br/>Family<br/>&nbsp;</small>
-<small><b>${severity}</b><br/>Severity<br/>&nbsp;</small>
-<small><b>${date}${raised_for_html}</b><br/>Time<br/>&nbsp;</small>
-<a href=\"${goto_url}\">View Netdata</a><br/>&nbsp;
-<small><small>The source of this alarm is line ${src}</small></small>
-"
-
-SENT_PUSHOVER=$?
-
-# -----------------------------------------------------------------------------
-# send the pushbullet notification
-
-send_pushbullet "${PUSHBULLET_ACCESS_TOKEN}" "${PUSHBULLET_SOURCE_DEVICE}" "${to_pushbullet}" "${goto_url}" "${host} ${status_message} - ${name//_/ } - ${chart}" "${alarm}\\n
-Severity: ${severity}\\n
-Chart: ${chart}\\n
-Family: ${family}\\n
-${date}\\n
-The source of this alarm is line ${src}"
-
-SENT_PUSHBULLET=$?
-
-# -----------------------------------------------------------------------------
-# send the twilio SMS
-
-send_twilio "${TWILIO_ACCOUNT_SID}" "${TWILIO_ACCOUNT_TOKEN}" "${TWILIO_NUMBER}" "${to_twilio}" "${host} ${status_message} - ${name//_/ } - ${chart}" "${alarm}
-Severity: ${severity}
-Chart: ${chart}
-Family: ${family}
-${info}"
-
-SENT_TWILIO=$?
-
-# -----------------------------------------------------------------------------
-# send the messagebird SMS
-
-send_messagebird "${MESSAGEBIRD_ACCESS_KEY}" "${MESSAGEBIRD_NUMBER}" "${to_messagebird}" "${host} ${status_message} - ${name//_/ } - ${chart}" "${alarm}
-Severity: ${severity}
-Chart: ${chart}
-Family: ${family}
-${info}"
-
-SENT_MESSAGEBIRD=$?
-
-# -----------------------------------------------------------------------------
-# send the kavenegar SMS
-
-send_kavenegar "${KAVENEGAR_API_KEY}" "${KAVENEGAR_SENDER}" "${to_kavenegar}" "${host} ${status_message} - ${name//_/ } - ${chart}" "${alarm}
-Severity: ${severity}
-Chart: ${chart}
-Family: ${family}
-${info}"
-
-SENT_KAVENEGAR=$?
-
-# -----------------------------------------------------------------------------
-# send the telegram.org message
-
-# https://core.telegram.org/bots/api#formatting-options
-send_telegram "${TELEGRAM_BOT_TOKEN}" "${to_telegram}" "${host} ${status_message} - <b>${name//_/ }</b>
-${chart} (${family})
-<a href=\"${goto_url}\">${alarm}</a>
-<i>${info}</i>"
-
-SENT_TELEGRAM=$?
-
-# -----------------------------------------------------------------------------
-# send the kafka message
-
-send_kafka
-SENT_KAFKA=$?
-
-# -----------------------------------------------------------------------------
-# send the pagerduty.com message
-
-send_pd "${to_pd}"
-SENT_PD=$?
-
-# -----------------------------------------------------------------------------
-# send the fleep message
-
-send_fleep "${to_fleep}"
-SENT_FLEEP=$?
-
-# -----------------------------------------------------------------------------
-# send the Prowl message
-
-send_prowl "${to_prowl}"
-SENT_PROWL=$?
-
-# -----------------------------------------------------------------------------
-# send the irc message
-
-send_irc "${IRC_NICKNAME}" "${IRC_REALNAME}" "${to_irc}" "${IRC_NETWORK}" "${host}" "${host} ${status_message} - ${name//_/ } - ${chart} ----- ${alarm}
-Severity: ${severity}
-Chart: ${chart}
-Family: ${family}
-${info}"
-
-SENT_IRC=$?
-
-# -----------------------------------------------------------------------------
-# send the SMS message with smstools3
-
-send_sms "${to_sms}"
-
-SENT_SMS=$?
-
-# -----------------------------------------------------------------------------
-# send the custom message
-
-send_custom() {
-	# is it enabled?
-	[ "${SEND_CUSTOM}" != "YES" ] && return 1
-
-	# do we have any sender?
-	[ -z "${1}" ] && return 1
-
-	# call the custom_sender function
-	custom_sender "${@}"
-}
-
-send_custom "${to_custom}"
-SENT_CUSTOM=$?
-
-# -----------------------------------------------------------------------------
-# send hipchat message
-
-send_hipchat "${HIPCHAT_AUTH_TOKEN}" "${to_hipchat}" " \
-${host} ${status_message}<br/> \
-<b>${alarm}</b> ${info_html}<br/> \
-<b>${chart}</b> (family <b>${family}</b>)<br/> \
-<b>${date}${raised_for_html}</b><br/> \
-<a href=\\\"${goto_url}\\\">View netdata dashboard</a> \
-(source of alarm ${src}) \
-"
-
-SENT_HIPCHAT=$?
-
-# -----------------------------------------------------------------------------
-# send the Amazon SNS message
-
-send_awssns "${to_awssns}"
-
-SENT_AWSSNS=$?
-
-# -----------------------------------------------------------------------------
-# send the syslog message
-
-send_syslog "${to_syslog}"
-
-SENT_SYSLOG=$?
-
-# -----------------------------------------------------------------------------
-# send the email
-
-IFS='' read -r -d '' email_plaintext_part <<EOF
-Content-Type: text/plain; encoding=${EMAIL_CHARSET}
-Content-Disposition: inline
-Content-Transfer-Encoding: 8bit
-
-${host} ${status_message}
-
-${alarm} ${info}
-${raised_for}
-
-Chart   : ${chart}
-Family  : ${family}
-Severity: ${severity}
-URL     : ${goto_url}
-Source  : ${src}
-Date    : ${date}
-Notification generated on ${host}
-
-Evaluated Expression :  ${calc_expression}
-Expression Variables :  ${calc_param_values}
-
-The host has ${total_warnings} WARNING and ${total_critical} CRITICAL alarm(s) raised.
-EOF
-
-if [[ "${EMAIL_PLAINTEXT_ONLY}" == "YES" ]]; then
-
-send_email <<EOF
-To: ${to_email}
-Subject: ${host} ${status_message} - ${name//_/ } - ${chart}
-MIME-Version: 1.0
-Content-Type: multipart/alternative; boundary="multipart-boundary"
-${email_thread_headers}
-
-This is a MIME-encoded multipart message
-
---multipart-boundary
-${email_plaintext_part}
---multipart-boundary--
-EOF
-
-else
-
-IFS='' read -r -d '' email_html_part <<EOF
-Content-Type: text/html; encoding=${EMAIL_CHARSET}
-Content-Disposition: inline
-Content-Transfer-Encoding: 8bit
-
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; margin: 0; padding: 0;">
-<body style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; width: 100% !important; min-height: 100%; line-height: 1.6; background: #f6f6f6; margin:0; padding: 0;">
-<table>
-    <tbody>
-    <tr>
-        <td style="vertical-align: top;" valign="top"></td>
-        <td width="700" style="vertical-align: top; display: block !important; max-width: 700px !important; clear: both !important; margin: 0 auto; padding: 0;" valign="top">
-            <div style="max-width: 700px; display: block; margin: 0 auto; padding: 20px;">
-                <table width="100%" cellpadding="0" cellspacing="0" style="background: #fff; border: 1px solid #e9e9e9;">
-                    <tbody>
-                    <tr>
-                        <td bgcolor="#eee" style="padding: 5px 20px 5px 20px; background-color: #eee;">
-                            <div style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 20px; color: #777; font-weight: bold;">netdata notification</div>
-                        </td>
-                    </tr>
-                    <tr>
-                        <td bgcolor="${color}" style="font-size: 16px; vertical-align: top; font-weight: 400; text-align: center; margin: 0; padding: 10px; color: #ffffff; background: ${color} !important; border: 1px solid ${color}; border-top-color: ${color};" align="center" valign="top">
-                            <h1 style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-weight: 400; margin: 0;">${host} ${status_message}</h1>
-                        </td>
-                    </tr>
-                    <tr>
-                        <td style="vertical-align: top;" valign="top">
-                            <div style="margin: 0; padding: 20px; max-width: 700px;">
-                                <table width="100%" cellpadding="0" cellspacing="0" style="max-width:700px">
-                                    <tbody>
-                                    <tr>
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding:0 0 20px;" align="left" valign="top">
-                                            <span>${chart}</span>
-                                            <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Chart</span>
-                                        </td>
-                                    </tr>
-                                    <tr style="margin: 0; padding: 0;">
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top">
-                                            <span><b>${alarm}</b>${info_html}</span>
-                                            <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Alarm</span>
-                                        </td>
-                                    </tr>
-                                    <tr>
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top">
-                                            <span>${family}</span>
-                                            <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Family</span>
-                                        </td>
-                                    </tr>
-                                    <tr style="margin: 0; padding: 0;">
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top">
-                                            <span>${severity}</span>
-                                            <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Severity</span>
-                                        </td>
-                                    </tr>
-                                    <tr style="margin: 0; padding: 0;">
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top"><span>${date}</span>
-                                            <span>${raised_for_html}</span> <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Time</span>
-                                        </td>
-                                    </tr>
-                                    <tr style="margin: 0; padding: 0;">
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top">
-                                            <span>${calc_expression}</span>
-                                            <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Evaluated Expression</span>
-                                        </td>
-                                    </tr>
-                                     <tr style="margin: 0; padding: 0;">
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top">
-                                            <span>${calc_param_values}</span>
-                                            <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Expression Variables</span>
-                                        </td>
-                                    </tr>
-                                     <tr style="margin: 0; padding: 0;">
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top">
-                                            The host has ${total_warnings} WARNING and ${total_critical} CRITICAL alarm(s) raised.
-                                         </td>
-                                    </tr>
-
-                                    <tr style="margin: 0; padding: 0;">
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;">
-                                            <a href="${goto_url}" style="font-size: 14px; color: #ffffff; text-decoration: none; line-height: 1.5; font-weight: bold; text-align: center; display: inline-block; text-transform: capitalize; background: #35568d; border-width: 1px; border-style: solid; border-color: #2b4c86; margin: 0; padding: 10px 15px;" target="_blank">View Netdata</a>
-                                        </td>
-                                    </tr>
-                                    <tr style="text-align: center; margin: 0; padding: 0;">
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 11px; vertical-align: top; margin: 0; padding: 10px 0 0 0; color: #666666;" align="center" valign="bottom">The source of this alarm is line <code>${src}</code><br/>(alarms are configurable, edit this file to adapt the alarm to your needs)
-                                        </td>
-                                    </tr>
-                                    <tr style="text-align: center; margin: 0; padding: 0;">
-                                        <td style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px; vertical-align: top; margin:0; padding: 20px 0 0 0; color: #666666; border-top: 1px solid #f0f0f0;" align="center" valign="bottom">Sent by
-                                            <a href="https://mynetdata.io/" target="_blank">netdata</a>, the real-time performance and health monitoring, on <code>${host}</code>.
-                                        </td>
-                                    </tr>
-                                    </tbody>
-                                </table>
-                            </div>
-                        </td>
-                    </tr>
-                    </tbody>
-                </table>
-            </div>
-        </td>
-    </tr>
-    </tbody>
-</table>
-</body>
-</html>
-EOF
-
-send_email <<EOF
-To: ${to_email}
-Subject: ${host} ${status_message} - ${name//_/ } - ${chart}
-MIME-Version: 1.0
-Content-Type: multipart/alternative; boundary="multipart-boundary"
-${email_thread_headers}
-
-This is a MIME-encoded multipart message
-
---multipart-boundary
-${email_plaintext_part}
---multipart-boundary
-${email_html_part}
---multipart-boundary--
-EOF
-
-fi
-
-SENT_EMAIL=$?
-
-# -----------------------------------------------------------------------------
-# let netdata know
-for state in "${SENT_EMAIL}" \
-	"${SENT_PUSHOVER}" \
-	"${SENT_TELEGRAM}" \
-	"${SENT_SLACK}" \
-	"${SENT_HANGOUTS}" \
-	"${SENT_ROCKETCHAT}" \
-	"${SENT_ALERTA}" \
-	"${SENT_FLOCK}" \
-	"${SENT_DISCORD}" \
-	"${SENT_TWILIO}" \
-	"${SENT_HIPCHAT}" \
-	"${SENT_MESSAGEBIRD}" \
-	"${SENT_KAVENEGAR}" \
-	"${SENT_PUSHBULLET}" \
-	"${SENT_KAFKA}" \
-	"${SENT_PD}" \
-	"${SENT_FLEEP}" \
-	"${SENT_PROWL}" \
-	"${SENT_CUSTOM}" \
-	"${SENT_IRC}" \
-	"${SENT_AWSSNS}" \
-	"${SENT_SYSLOG}" \
-	"${SENT_SMS}" \
-	"${SENT_MSTEAM}"; do
-	if [ "${state}" -eq 0 ]; then
-		# we sent something
-		exit 0
-	fi
-done
-# we did not send anything
-exit 1