shell使用微信公众号发送模板消息

#!/bin/sh

# 微信消息发送脚本 zhutw

#全局配置--
#微信公众号appID
appID=wxe14bed8b9882c259

#微信公众号appsecret
appsecret=f97826cd18236872b07e53e330ae02b6

#微信公众号发送消息模板
tpl_id=0P67Th60_C_xExoCIdDJyEUap26r_-MR5VJ1g1qBNjw
#消息模板：
#   {{first.DATA}} 
#   项目名称：{{name.DATA}} 
#   报警时间：{{date.DATA}}
#
#   {{remark.DATA}}

#获取微信公众号AccessToken，并缓存到本地 函数
getAccessToken(){
    if [ -f "$HOME/.wechat_accesstoken" ]; then
        access_token=`cat $HOME/.wechat_accesstoken | awk -F":" ‘{print $1}‘`
        expires_in=`cat $HOME/.wechat_accesstoken | awk -F":" ‘{print $2}‘`
        time=`cat $HOME/.wechat_accesstoken | awk -F":" ‘{print $3}‘`
            if [ -z $access_token ] || [ -z $expires_in ] || [ -z $time ]; then
            rm -f $HOME/.wechat_accesstoken
            getAccessToken 
        fi
    else
        content=$(curl "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appID&secret=$appsecret")
        echo "get content: $content"
        access_token=`echo $content | awk -F "\"" ‘{print $4}‘`
        expires_in=`echo $content | awk -F "\"" ‘{print $7}‘ | cut -d"}" -f1|cut -c2-`
        echo "access_token = $access_token"
        echo "expires_in = $expires_in"
        time=$(date +%s)
        echo "$access_token:$expires_in:$time" > $HOME/.wechat_accesstoken

        if [ -z $access_token ] || [ -z $expires_in ] || [ -z $time ]; then
                    echo "not get access_token"
                    exit 0
        fi
        fi

    remain=$[$(date +%s) - $time]
    limit=$[$expires_in - 60]
    if [ $remain -gt $limit ]; then
        rm -f $HOME/.wechat_accesstoken
        getAccessToken
    fi
}
#发送消息函数
sendMessage(){
    #消息json体
    message=`cat << EOF
    {
    "touser":"$openid",
    "template_id":"$tpl_id",
    "url":"$url",
    "data":{
            "first": {
                    "value":"$first",
                    "color":"#FF0000"
            },
            "name":{
                    "value":"$name",
                    "color":"#173177"
            },      
            "date": {
                    "value":"$date",
                    "color":"#173177"
            },
            "remark":{
                    "value":"$remark",
                    "color":"#FF0000"
            }
    }
     }
EOF
`
   echo "send message : $message"
   curl -X POST -H "Content-Type: application/json"  https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=$access_token -d "$message" 
}

#帮助信息函数
usage(){
    cat <<EOF
usage: $0 [-u openids -s summary -n name -t time -d detail -l link] [-h]
    u   wechat user openid , multiple comma separated
    s   message summary
    n   project name
    t   alarm time
    d   message detail
    l   link address
    h   output this help and exit
EOF
}

#获取脚本执行参数
while getopts ":u:s:n:t:d:h:l:" op; do
    case $op in
        u)
        openids="$OPTARG"
        ;;
        s)
        first="$OPTARG"
        ;;
            n)
               name="$OPTARG"
        ;;
            t)
        date="$OPTARG"
        ;;
            d)
        remark="$OPTARG"
        ;;
        l)
        url="$OPTARG"
        ;;
        *)
        usage
        exit 0
        ;;
    esac
done

#判断条件满足发送消息
if [[ -n $openids && -n $first && -n $name && -n $date ]]; then
    getAccessToken
    OLD_IFS="$IFS"
    IFS=","
    arr=($openids)
    IFS="$OLD_IFS"
    for openid in ${arr[@]}
    do
        sendMessage
    done
    exit $?
else
    echo "params error."
    usage
    exit 1
fi