#!/bin/bash
# File: sendSMS.sh
# Author: A.Lang
# Purpose: Sendind the SMS thru FareaStone carrier
# Created: 2014/01/13
#

API_SYSID="ZM8WZ"
API_SRCADD="019168000"
API_URL="http://61.20.32.60:6600/mpushapi/smssubmit"

Usage() { 
    echo "Usage: $0 [-t <TEXT-Message>] [-n <phone-number>]"; 
    echo "For example: $0 -t \"Hello, SuperMan\" -n \"085713 457199\" "
}

while getopts ":t:n:" o; do
    case "$o" in
        t)
            t=$OPTARG
            ;;
        n)
            n=$OPTARG
            ;;
        \?)
            echo "Invalid option: -$OPTARG"
            Usage
            exit 1
            ;;
        :)
            echo "Option -$OPTARG requires an argument !"
            Usage
            exit 1
            ;;
    esac
done

if [ $OPTIND -ne 5 ]; then
    echo "Invalid options entered !"
    Usage
    exit 1
fi

IN_TXT="$t"
IN_PHONE="$n"

function parseXML() {
    elemList=( $(echo $xmlFile | tr '\n' ' ' | XMLLINT_INDENT="" xmllint --format - | /bin/grep -e "</.*>$" | while read line; do \
    echo $line | sed -e 's/^.*<\///' | cut -d '>' -f 1; \
  done) )

    totalNoOfTags=${#elemList[@]}; ((totalNoOfTags--))
    suffix=$(echo ${elemList[$totalNoOfTags]} | tr -d '</>')
    suffix="${suffix}_"

    for (( i = 0 ; i < ${#elemList[@]} ; i++ )); do
        elem=${elemList[$i]}
        elemLine=$(echo $xmlFile | tr '\n' ' ' | XMLLINT_INDENT="" xmllint --format - | /bin/grep "</$elem>")
        echo $elemLine | grep -e "^</[^ ]*>$" 1>/dev/null 2>&1
        if [ "0" = "$?" ]; then
            continue
        fi
        elemVal=$(echo $elemLine | tr '\011' '\040'| sed -e 's/^[ ]*//' -e 's/^<.*>\([^<].*\)<.*>$/\1/' | sed -e 's/^[ ]*//' | sed -e 's/[ ]*$//')
        xmlElem="${suffix}$(echo $elem | sed 's/-/_/g')"
        eval ${xmlElem}=`echo -ne \""${elemVal}"\"`
        attrList=($(echo $xmlFile | tr '\n' ' ' | XMLLINT_INDENT="" xmllint --format - | /bin/grep "</$elem>" | tr '\011' '\040' | sed -e 's/^[ ]*//' | cut -d '>' -f 1  | sed -e 's/^<[^ ]*//' | tr "'" '"' | tr '"' '\n'  | tr '=' '\n' | sed -e 's/^[ ]*//' | sed '/^$/d' | tr '\011' '\040' | tr ' ' '>'))
        for (( j = 0 ; j < ${#attrList[@]} ; j++ )); do
           attr=${attrList[$j]}
           ((j++))
           attrVal=$(echo ${attrList[$j]} | tr '>' ' ')
           attrName=`echo -ne ${xmlElem}_${attr}`
           eval ${attrName}=`echo -ne \""${attrVal}"\"`
     done
done
}


function Process_PhoneNumbers(){
    if [ -n "$@" ]; then
        API_DEST=""
        for no in $@
        do
            API_DEST="${API_DEST}<DestAddress>${no}</DestAddress>"
        done
    fi
} 


function PreCheck(){
    NOT_OK=0
    ## Check the command curl
    if ! which curl > /dev/null 2>&1; then
        NOT_OK=1
        echo "The Command curl NOT Found!"
    fi

    ## Check the command base64
    if ! which base64 > /dev/null 2>&1; then
        NOT_OK=1
        echo "The Command base64 NOT Found !"
    fi

    ## Check the internet to FareaStone
    if ! curl -m 6 --silent --head $API_URL  |egrep "200 OK" >/dev/null
    then
        NOT_OK=1
        echo "It seems the internet is down !" 
    fi


    if [ $NOT_OK -eq 1 ]; then
        return 0
    else
        return 1
    fi
}


function SendSMS(){
    XML_STR='xml=<?xml version="1.0" encoding="UTF-8"?><SmsSubmitReq><SysId>'${API_SYSID}'</SysId><SrcAddress>'${API_SRCADD}'</SrcAddress>'${API_DEST}'<SmsBody>'${API_TXT}'</SmsBody><DrFlag>true</DrFlag><FirstFailFlag>false</FirstFailFlag></SmsSubmitReq>'

    RE=$(echo $XML_STR | curl -d @- $API_URL)

}


API_TXT=$(echo "$IN_TXT" | base64)

if PreCheck; then
    echo "Aborted."
    exit 1
fi


Process_PhoneNumbers "$IN_PHONE"
SendSMS

xmlFile=$RE
parseXML
echo "ResultCode: $SubmitRes_ResultCode" #Variables for each  XML ELement
echo "ResultText: $SubmitRes_ResultText" #Variables for each  XML ELement
echo ""