Trivial command line interface to 46elks for SMS notification sending

smsnotify

#!/bin/sh

#
# How to use:
# * Sign up for account at 46elks.com. Note down API user/password (not same as account credentials)
# * Install this script and chmod 755 it
# * Put the credentials in the file /etc/sms.conf OR ~/.smsconf
#
# Now you can run the script e.g. echo "My message" | smsnotify [-f from_name] to_number1 to_number2...

_FROM=`hostname -s`

args=`getopt f: $*`
if [ $? != 0 ]; then
  echo 'Usage: $0 [-f <from_name>] message...'
  exit 2
fi
set -- $args
for i; do
  case "$i" in
    -f)
       _FROM=$2
       shift 2
       ;;
  esac
done

shift 1
_TO=$*

if [ -f $HOME/.smsconf ]; then
  . $HOME/.smsconf
elif [ -f /etc/sms.conf ]; then
  . /etc/sms.conf
else
  echo "Please create /etc/sms.conf or \$HOME/.smsconf"
  echo "Export the SMSUSER and SMSPASSWORD variables"
  exit 1
fi

if [ -z "$SMSUSER" ]; then
  echo "SMSUSER not specified"
  exit 1
fi
if [ -z "$SMSPASSWORD" ]; then
  echo "SMSPASSWORD not specified"
  exit 1
fi

if [ -z "${_TO}" ]; then
  echo 'No recipients'
  exit 2
fi

_MESSAGE=$(cat)

if [ -z "${_MESSAGE}" ]; then
  echo 'Empty message. Refusing to send.'
  exit 2
fi

_MESSAGE=$(perl -MURI::Escape -e 'print uri_escape($ARGV[0]);' "$_MESSAGE")
_FROM=$(perl -MURI::Escape -e 'print uri_escape($ARGV[0]);' "$_FROM")

for i in ${_TO}; do
  j=$(perl -MURI::Escape -e 'print uri_escape($ARGV[0]);' "$i")
  echo "Sending '${_MESSAGE}' from ${_FROM} to $i"
  curl -u "$SMSUSER:$SMSPASSWORD" --data "from=${_FROM}&to=${i}&message=${_MESSAGE}" https://api.46elks.com/a1/SMS
done