telegram-send/telegram-send.sh

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#!/bin/bash
DEFAULT_TOKENFILE=${HOME}/.telegram/bottoken
DEFAULT_CHATFILE=${HOME}/.telegram/chatid
TOKENFILE=${DEFAULT_TOKENFILE}
CHATFILE=${DEFAULT_CHATFILE}
function die() {
echo "FATAL: $*" >&2
exit 1
}
function usage() {
echo "usage: $0 [OPTIONS] \"text to send\""
echo
echo "Instructs telegram bot to send the supplied message to a chat."
echo
echo "OPTIONS"
echo " -b filename Override default bot token file (${DEFAULT_TOKENFILE})"
echo " -c filename Override default chat id token file (${DEFAULT_CHATFILE})"
echo
echo "Needs these files to work:"
echo " File with telegram bot token: ${DEFAULT_TOKENFILE}"
echo " File with telegram chat id: ${DEFAULT_CHATFILE}"
}
ARGS="b:c:h"
while getopts "$ARGS" i; do
case "$i" in
b)
TOKENFILE=$OPTARG
;;
c)
CHATFILE=$OPTARG
;;
h)
usage;
exit 1;
;;
*)
usage;
exit 1;
;;
esac
done
shift $((OPTIND - 1))
if [[ $# -ne 1 ]]; then
usage
exit 1
fi
[[ ! -e ${TOKENFILE} ]] && die "bot token file '${TOKENFILE}' doesn't exist";
[[ ! -e ${CHATFILE} ]] && die "chat id file '${CHATFILE}' doesn't exist";
TOKEN=$(egrep -v '^#' "$TOKENFILE")
CHAT=$(egrep -v '^#' "$CHATFILE")
[[ -z ${TOKEN} ]] && die "bot token file '${TOKENFILE}' appears empty";
[[ -z ${CHAT} ]] && die "chat id file '${CHATFILE}' appears empty";
msg="$*"
res=$(curl -s --data "text=$msg" --data "chat_id=$CHAT" 'https://api.telegram.org/bot'$TOKEN'/sendMessage' 2>&1)
rv=$?
[[ $rv -ne 0 ]] && fatal "curl failed"
status=$(jq -r .ok <<<"${res}")
[[ $status != "true" ]] && die "telegram API returned failure: ${res}"
exit 0