コマンドラインでCustomers Mail Cloudからメール送信を行うシェルスクリプト

cmc.sh

#!/bin/bash -x

PROGNAME=$(basename $0)
VERSION='2.0'

declare -a FILES=()

usage() {
    echo "Usage: $PROGNAME [OPTIONS]"
    echo "  This script is sending email from shell script by Customers Mail Cloud."
    echo
    echo "Options:"
    echo "  -h, --help"
    echo "      --version"
    echo "  -c, --contract trial | standard | subdmain"
    echo "  -u, --api-user API_USER"
    echo "  -k, --api-key API_KEY"
    echo "  -e, --email to@example.com"
    echo "  -n, --name EMAIL_NAME"
    echo "  -f, --from from@example.com"
    echo "  -s, --subject EMAIL_SUBJECT"
    echo "  -t, --text File path"
    echo "  -fn, --from-name EMAIL_FROM_NAME"
    echo "  -F, --file File path"
    echo
    exit 1
}

escape () {
    printf '%s' "$1" | python -c 'import json,sys; print(json.dumps(sys.stdin.read()))'
}

file_to_jsonparam (){
  IFS=$'\n'
  OUTPUT="/tmp/file_to_jsonparam"
  echo "" > ${OUTPUT}
  cat $1 | while read LINE
  do
    ESCAPED_LINE=`echo $LINE | sed -e "s/\([\&\:\"\<\>\{\}\/]\)/__ESCAPE__\1/g" | sed -e "s/__ESCAPE__/\\\\\/g"`
    echo -n "${ESCAPED_LINE}\\r\\n" >> ${OUTPUT}
  done
  RESULT=`cat ${OUTPUT}`
  rm -f ${OUTPUT}
  echo ${RESULT}
}

for OPT in "$@"
do
    case $OPT in
        -h | --help)
            usage
            exit 1
            ;;
        --version)
            echo $VERSION
            exit 1
            ;;
        -c | --contract)
            if [[ -z "$2" ]] || [[ "$2" =~ ^-+ ]]; then
                echo "$PROGNAME: option requires an argument -- $1" 1>&2
                exit 1
            fi
            CONTRACT=$2
            shift 2
            ;;
        -k | --api-key)
            if [[ -z "$2" ]] || [[ "$2" =~ ^-+ ]]; then
                echo "$PROGNAME: option requires an argument -- $1" 1>&2
                exit 1
            fi
            API_KEY=`escape $2`
            shift 2
            ;;
        -u | --api-user)
            if [[ -z "$2" ]] || [[ "$2" =~ ^-+ ]]; then
                echo "$PROGNAME: option requires an argument -- $1" 1>&2
                exit 1
            fi
            API_USER=`escape $2`
            shift 2
            ;;
        -s | --subject)
            if [[ -z "$2" ]] || [[ "$2" =~ ^-+ ]]; then
                echo "$PROGNAME: option requires an argument -- $1" 1>&2
                exit 1
            fi
            SUBJECT=`escape $2`
            shift 2
            ;;
        -e | --email)
            if [[ -z "$2" ]] || [[ "$2" =~ ^-+ ]]; then
                echo "$PROGNAME: option requires an argument -- $1" 1>&2
                exit 1
            fi
            EMAIL=`escape $2`
            shift 2
            ;;
        -n | --name)
            if [[ -z "$2" ]] || [[ "$2" =~ ^-+ ]]; then
                echo "$PROGNAME: option requires an argument -- $1" 1>&2
                exit 1
            fi
            NAME=`escape $2`
            shift 2
            ;;
        -f | --from)
            if [[ -z "$2" ]] || [[ "$2" =~ ^-+ ]]; then
                echo "$PROGNAME: option requires an argument -- $1" 1>&2
                exit 1
            fi
            FROM=`escape $2`
            shift 2
            ;;
        -fn | --from-name)
            if [[ -z "$2" ]] || [[ "$2" =~ ^-+ ]]; then
                echo "$PROGNAME: option requires an argument -- $1" 1>&2
                exit 1
            fi
            FROM_NAME=`escape $2`
            shift 2
            ;;
        -t | --text)
            if [[ -z "$2" ]] || [[ "$2" =~ ^-+ ]]; then
                echo "$PROGNAME: option requires an argument -- $1" 1>&2
                exit 1
            fi
            TEXT=$2
            shift 2
            ;;
        -F | --file)
            if [[ -z "$2" ]] || [[ "$2" =~ ^-+ ]]; then
                echo "$PROGNAME: option requires an argument -- $1" 1>&2
                exit 1
            fi
            FILES+=($2)
            shift 2
            ;;
        -*)
            echo "$PROGNAME: illegal option -- '$(echo $1 | sed 's/^-*//')'" 1>&2
            exit 1
            ;;
        *)
            if [[ ! -z "$1" ]] && [[ ! "$1" =~ ^-+ ]]; then
                param+=( "$1" )
                shift 1
            fi
            ;;
    esac
done

if [ "$FROM_NAME" = '' ]; then
    FROM_NAME="\"\""
fi
if [ "$NAME" = '' ]; then
    NAME="\"\""
fi
if [ "$TEXT" = '' ]; then
    echo "$PROGNAME: Text is required. Using --text or -t [filename]." 1>&2
    exit 1
else
    BODY=`file_to_jsonparam $TEXT`
fi
if [ "$SUBJECT" = '' ]; then
    echo "$PROGNAME: Subject is required. Using --subject or -s subject." 1>&2
    exit 1
fi
if [ "$EMAIL" = '' ]; then
    echo "$PROGNAME: Email address is required. Using --email or -e email@exapmle.com." 1>&2
    exit 1
fi
if [ "$FROM" = '' ]; then
    echo "$PROGNAME: From email address is required. Using --from or -f email@exapmle.com." 1>&2
    exit 1
fi
if [ "$CONTRACT" = '' ]; then
    echo "$PROGNAME: Your contract is required. Using --contract or -c trial | standard | subdmain(pro) ." 1>&2
    exit 1
fi
if [ "$API_USER" = '' ]; then
    echo "$PROGNAME: API User is required. Using --api-user or -u YOUR_USER." 1>&2
    exit 1
fi
if [ "$API_KEY" = '' ]; then
    echo "$PROGNAME: API Key is required. Using --api-key or -k YOUR_KEY." 1>&2
    exit 1
fi

if [ "$CONTRACT" = 'trial' ]; then
    URL='https://sandbox.smtps.jp/api/v2/emails/send.json'
elif [ "$CONTRACT" = 'standard' ]; then
    URL='https://te.smtps.jp/api/v2/emails/send.json'
else
    URL="https://$CONTRACT.smtps.jp/api/v2/emails/send.json"
fi

# Make JSON

# echo $TEXT
echo `escape $SUBJECT`

if [ "${#FILES[@]}" = '0' ]; then
    json=$(cat << EOS
    {
    "api_user" : $API_USER,
    "api_key" : $API_KEY,
    "to" : [
        {
        "name" : $NAME,
        "address" : $EMAIL
        }
    ],
    "from" : {
        "name" : $FROM_NAME,
        "address" : $FROM
    },
    "subject" : $SUBJECT,
    "text" : "$BODY"
    }
EOS
    )
    curl -X POST -H "Content-Type: application/json" \
        -d "$json" $URL
else
    ARG = ""
    i=1
    for e in ${FILES[@]}; do
        echo "attachment$i = ${e}"
        ARG="$ARG -F attachment$i=@$e"
        let i++
    done
    curl -X POST \
        -F "api_user=$API_USER" \
        -F "api_key=$API_KEY" \
        -F "to={"name": "$NAME","address": "$EMAIL"}" \
        -F "from={"name": "$FROM_NAME","address":"$FROM"}" \
        -F "attachments=${#FILES[@]}" \
        -F "subject=$SUBJECT" \
        --form-string "text=$(<$TEXT)" \
        $ARG \
        $URL
fi