C#检测并安装https站点的数字证书，CefSharp和HttpWebRequest通过会话Cookie实现自动登录访问https站点

HttpUtil工具类：

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;

namespace MyBrowser
{
    /// <summary>
    /// Http上传下载文件
    /// </summary>
    public class HttpUtil
    {
        #region cookie设置
        private static CookieContainer m_Cookie = new CookieContainer();

        public static void SetHttpCookie(CookieContainer cookie)
        {
            m_Cookie = cookie;
        }
        #endregion

        #region HttpDownloadFile 下载文件
        public static MemoryStream HttpDownloadFile(string url)
        {
            // 设置参数
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            request.Method = "GET";
            request.CookieContainer = m_Cookie;

            //发送请求并获取相应回应数据
            HttpWebResponse response = request.GetResponse() as HttpWebResponse;
            //直到request.GetResponse()程序才开始向目标网页发送Post请求
            Stream responseStream = response.GetResponseStream();

            //创建写入流
            MemoryStream stream = new MemoryStream();

            byte[] bArr = new byte[];
            int size = responseStream.Read(bArr, , (int)bArr.Length);
            while (size > )
            {
                stream.Write(bArr, , size);
                size = responseStream.Read(bArr, , (int)bArr.Length);
            }
            stream.Seek(, SeekOrigin.Begin);
            responseStream.Close();
            return stream;
        }
        #endregion

        #region HttpUploadFile 上传文件
        /// <summary>
        /// Http上传文件
        /// </summary>
        public static string HttpUploadFile(string url, byte[] bArr, string fileName)
        {
            // 设置参数
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            CookieContainer cookieContainer = new CookieContainer();
            request.CookieContainer = cookieContainer;
            request.AllowAutoRedirect = true;
            request.Method = "POST";
            string boundary = DateTime.Now.Ticks.ToString("X"); // 随机分隔线
            request.ContentType = "text/plain;charset=utf-8";
            request.CookieContainer = m_Cookie;

            Stream postStream = request.GetRequestStream();
            postStream.Write(bArr, , bArr.Length);
            postStream.Close();

            //发送请求并获取相应回应数据
            HttpWebResponse response = request.GetResponse() as HttpWebResponse;
            //直到request.GetResponse()程序才开始向目标网页发送Post请求
            Stream instream = response.GetResponseStream();
            StreamReader sr = new StreamReader(instream, Encoding.UTF8);
            //返回结果网页（html）代码
            string content = sr.ReadToEnd();
            return content;
        }
        #endregion

        #region HttpPost
        /// <summary>
        /// HttpPost
        /// </summary>
        public static string HttpPost(string url, string data)
        {
            byte[] bArr = ASCIIEncoding.UTF8.GetBytes(data);

            // 设置参数
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            request.CookieContainer = m_Cookie;
            request.Method = "POST";
            request.ContentType = "text/plain;charset=utf-8";
            request.ContentLength = bArr.Length;

            Stream postStream = request.GetRequestStream();
            postStream.Write(bArr, , bArr.Length);
            postStream.Close();

            //发送请求并获取相应回应数据
            HttpWebResponse response = request.GetResponse() as HttpWebResponse;
            //直到request.GetResponse()程序才开始向目标网页发送Post请求
            Stream instream = response.GetResponseStream();
            StreamReader sr = new StreamReader(instream, Encoding.UTF8);
            //返回结果网页（html）代码
            string content = sr.ReadToEnd();
            return content;
        }
        #endregion

        #region HttpPost
        /// <summary>
        /// HttpPost
        /// </summary>
        public static string HttpPost(string url)
        {
            // 设置参数
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            request.CookieContainer = m_Cookie;
            request.Method = "POST";
            request.ContentType = "text/plain;charset=utf-8";

            //发送请求并获取相应回应数据
            HttpWebResponse response = request.GetResponse() as HttpWebResponse;
            //直到request.GetResponse()程序才开始向目标网页发送Post请求
            Stream instream = response.GetResponseStream();
            StreamReader sr = new StreamReader(instream, Encoding.UTF8);
            //返回结果网页（html）代码
            string content = sr.ReadToEnd();
            return content;
        }
        #endregion

        #region HttpGet
        /// <summary>
        /// HttpGet
        /// </summary>
        public static string HttpGet(string url)
        {
            // 设置参数
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            request.CookieContainer = m_Cookie;
            request.Method = "GET";
            request.ContentType = "text/plain;charset=utf-8";

            //发送请求并获取相应回应数据
            HttpWebResponse response = request.GetResponse() as HttpWebResponse;
            //直到request.GetResponse()程序才开始向目标网页发送Post请求
            Stream instream = response.GetResponseStream();
            StreamReader sr = new StreamReader(instream, Encoding.UTF8);
            //返回结果网页（html）代码
            string content = sr.ReadToEnd();
            return content;
        }
        #endregion

        #region HttpGet
        /// <summary>
        /// HttpGet
        /// </summary>
        public static string HttpGet(string url, out Cookie cookie)
        {
            // 设置参数
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            request.CookieContainer = m_Cookie;
            request.Method = "GET";
            request.ContentType = "text/plain;charset=utf-8";

            //发送请求并获取相应回应数据
            HttpWebResponse response = request.GetResponse() as HttpWebResponse;
            //直到request.GetResponse()程序才开始向目标网页发送Post请求
            Stream instream = response.GetResponseStream();
            StreamReader sr = new StreamReader(instream, Encoding.UTF8);
            //返回结果网页（html）代码
            string content = sr.ReadToEnd();

            //获取Cookie
            CookieCollection cc = request.CookieContainer.GetCookies(request.RequestUri);
            if (cc != null && cc.Count > )
            {
                cookie = cc[];
            }
            else
            {
                cookie = null;
            }

            return content;
        }
        #endregion

    }
}

C#检测并安装https站点的数字证书：

bool isCertStored = true;
X509Store store = new X509Store(StoreName.Root, StoreLocation.LocalMachine);
store.Open(OpenFlags.MaxAllowed);
X509Certificate2Collection certs = store.Certificates.Find(X509FindType.FindBySubjectName, "HIKVISION-GA-ROOT-V1", false);
if (certs.Count ==  || certs[].NotAfter < DateTime.Now)
{
    if (File.Exists(AppDomain.CurrentDomain.BaseDirectory + "HuShaCert.cer"))
    {
        X509Certificate2 certificate = new X509Certificate2(AppDomain.CurrentDomain.BaseDirectory + "HuShaCert.cer");
        store.Add(certificate); //安装证书
    }
    else
    {
        isCertStored = false;
    }
}
store.Close();
if (!isCertStored)
{
    System.Windows.MessageBox.Show("证书没有安装成功，无法访问系统，请联系管理员");
    return;
}

CefSharp和HttpWebRequest通过会话Cookie实现自动登录：

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    Task.Factory.StartNew(() =>
    {
        try
        {
            //获取token
            string tokenUrl = tokenUrl = _baseUrl + "/noPasswordLogin_A10AD3FA1EC4FDBAA9B7007BBF3FCD89/?ACTION=getToken";
            string token = HttpUtil.HttpGet(tokenUrl);
            if (token != null) token = token.Trim();

            //登录，并取得Cookie
            string loginUrl = _baseUrl + string.Format("/noPasswordLogin_A10AD3FA1EC4FDBAA9B7007BBF3FCD89/?ACTION=verify&VERIFY_TOKEN={0}&YISA_API_NAME=yisa_api1", token);
            System.Net.Cookie cookie = null;
            HttpUtil.HttpGet(loginUrl, out cookie);

            if (cookie != null)
            {
                CefSharp.Cookie cefsharpCookie = new CefSharp.Cookie();
                cefsharpCookie.Domain = cookie.Domain;
                cefsharpCookie.Name = cookie.Name;
                cefsharpCookie.Value = cookie.Value;

                this.Dispatcher.BeginInvoke(new Action(() =>
                {
                    try
                    {
                        _browser = new ExtChromiumBrowser() { Dock = DockStyle.Fill };
                        BindBrowser(_browser);

                        //设置Cookie
                        var cookieManager = CefSharp.Cef.GetGlobalCookieManager();
                        cookieManager.SetCookieAsync(_baseUrl, cefsharpCookie);

                        _browser.Load(_baseUrl + "/?c=inquiry_model");
                        host.Child = _browser;
                    }
                    catch
                    {
                        System.Windows.MessageBox.Show("无法访问，请联系管理员");
                        this.Close();
                    }
                }));
            }
            else
            {
                System.Windows.MessageBox.Show("登录失败，请联系管理员");
                this.Close();
            }
        }
        catch
        {
            System.Windows.MessageBox.Show("无法访问，请联系管理员");
            this.Close();
        }
    });
}