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const http = require('http');
const crypto = require('crypto');
const querystring = require('querystring');
const fs = require('fs');
const encodingConvert = require('encoding');

//参数
let url = "http://www.lokapi.cn/smsUTF8.aspx"
let rece = "json"
let username = "******"
let password = "123456"
let token = "333293sd"

let passwd = md5(password);
let timestamp = Date.now();
let body = "action=sendimagetext&username=" + username + "&password=" + passwd + "&token=" + token + "&timestamp=" + timestamp;
let sign = md5(body);

//发送帧

//文字
let content = '祝你生日快乐';
let buff = Buffer.from(content, 'utf8');
let resultBuffer = encodingConvert.convert(buff, "GBK", "UTF8");
let base64Content = resultBuffer.toString('base64');

//图片
let path = 'D:\\我的文档\\Pictures\\d2e10cb3ac49dc63d013cb63ab6ca7cd.jpg';
let ext = 'jpg';//图片后缀
let base64str = base64_encode(path);
let message = 'txt|' + base64Content + ',' + ext + '|' + base64str + ';';
message = message.replace('%', '%25');
message = message.replace('&', '%26');
message = message.replace('+', '%2B');

// 用于请求的选项
let contents = querystring.stringify({
    "action": "sendimagetext",
    "username": username,
    "password": passwd,
    "token": token,
    "timestamp": timestamp,
    "sign": sign,
    "rece": rece,
    "mobile": '17712345678',
    "title": '祝福短信',
    'message': message
});

let options = {
    host: 'localhost',
    port: 59414,
    path: '/smsUTF8.aspx',
    method: 'POST',
    headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
        'Content-Length': contents.length
    }
}

let req = http.request(options, function (res) {
    res.setEncoding('utf8');
    res.on('data', function (data) {
        console.log("data:", data);   //一段html代码
    });
});

req.write(contents);
req.end;

function md5(data) {
    // 以md5的格式创建一个哈希值
    let hash = crypto.createHash('md5');
    return hash.update(data).digest('hex').toUpperCase();
}

function base64_encode(file) {
    var bitmap = fs.readFileSync(file);
    return Buffer.from(bitmap, 'utf8').toString('base64');
}