using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Text.Json;

class Program
{
    private const string host = "https://api.ihuyi.com";
    private const string path = "/mms/v1/batchSend";
    private const string method = "POST";

    static void Main(string[] args)
    {
        // 定義請求的數(shù)據(jù)
        var values = new Dictionary<string, object>
        {
        {"api_id": "mms-xxxxxxxx"}, //APIID(用戶中心【富媒體短信】-【5G視頻短信】-【產(chǎn)品總覽】查看)
        {"signature": "xxxxxxxxx"}, //請求驗證加密簽名(非彩信簽名)；
簽名生成方式：
僅公共參數(shù)以ASCII碼從小到大排序值，key=value，多值以“&”隔開，拼接之后md5 32位小寫； 如：md5(api_id=xxxx&api_key=xxxx&request_id=xxxxxxxx&timestamp=xxxxxxx)
APIKEY(用戶中心【富媒體短信】-【5G視頻短信】-【產(chǎn)品總覽】查看)
2、動態(tài)密碼(生成動態(tài)密碼方式請看該文檔末尾的說明)
        {"timestamp": 1623643787}, //東八時區(qū);10位時間戳，時間允許相差±60S
        {"request_id": "xxxxxxxxxxxx"}, //請求方請求ID，建議使用唯一ID，比如使用uuid；我方系統(tǒng)會2小時內去重驗證處理，防止網(wǎng)絡重復攻擊；
        {"product_id": 1001}, //產(chǎn)品ID
        {"phone": new List<string> { "18800000000", "18800000001" }}, //手機號數(shù)組(最多1萬個號碼)
        {"sign_name": "xxxxxxxx"}, //彩信簽名(template_id未填寫則必填)
        {"title": "xxxxxxxxxxxx"}, //彩信標題(template_id未填寫則必填)
        {"content": new List<Dictionary<string, string>> {
                new Dictionary<string, string> { {"con_type", "txt"}, {"ext_type", ""}, {"data", "將原始內容base64編碼"} },
                new Dictionary<string, string> { {"con_type", "img"}, {"ext_type", "jpg"}, {"data", "將原始內容base64編碼"} }
            }}, //彩信內容和模板ID必須傳入1個；當彩信內容和模板ID都傳入時，傳入內容生效，模板ID屬性失效 彩信元素DataItem結構:（具體參照文檔9.01）
        {"template_id": 1}, //模板ID(內容為空則必填)
        {"send_time": "2020-08-26 16:08:14"}, //定時發(fā)送時間
        };

        // 將數(shù)據(jù)轉換為JSON字符串
        string jsonBody = JsonSerializer.Serialize(values);
        byte[] data = Encoding.UTF8.GetBytes(jsonBody);

        string url = host + path;
        HttpWebRequest httpRequest = null;
        HttpWebResponse httpResponse = null;

        if (host.Contains("https://"))
        {
            ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
            httpRequest = (HttpWebRequest)WebRequest.CreateDefault(new Uri(url));
        }
        else
        {
            httpRequest = (HttpWebRequest)WebRequest.Create(url);
        }
        
        httpRequest.Method = method;
        httpRequest.ContentType = "application/json";
        httpRequest.ContentLength = data.Length;
        
        // 將JSON數(shù)據(jù)寫入請求體
        using (Stream stream = httpRequest.GetRequestStream())
        {
            stream.Write(data, 0, data.Length);
        }
        
        try
        {
            httpResponse = (HttpWebResponse)httpRequest.GetResponse();
        }
        catch (WebException ex)
        {
            httpResponse = (HttpWebResponse)ex.Response;
        }

        Console.WriteLine(httpResponse.StatusCode);
        Console.WriteLine(httpResponse.Method);
        Console.WriteLine(httpResponse.Headers);
        Stream st = httpResponse.GetResponseStream();
        StreamReader reader = new StreamReader(st, Encoding.GetEncoding("utf-8"));
        Console.WriteLine(reader.ReadToEnd());
        Console.WriteLine("\n");

        // 釋放資源
        reader.Close();
        st.Close();
        if (httpResponse != null) 
            httpResponse.Close();
    }

    public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
    {
        return true;
    }
}