3

我正在创建一个能够远程捕获网站屏幕截图的控制台应用程序。一切正常，除了我无法避免证书错误这一事实。每次我收到我无法通过的弹出消息。

我尝试使用：

ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateServerCertificate);

但它不起作用。还尝试了此处找到的解决方案：http: //www.codeproject.com/Articles/31163/Suppressing-Hosted-WebBrowser-Control-Dialogs 但它似乎不适用于从控制台应用程序调用的 webbrowser。

有任何想法吗？

4

2 回答 2

4

webbrowser 控件使用 WinInet 作为其网络堆栈。设置 ServerCertificateValidationCallback 对 WinInet 没有影响。

要处理证书错误，您需要实现 IHttpSecurity 服务并根据请求传递给网络浏览器。网络浏览器通过在 ActiveX 主机上实现的 IServiceProvider 查询主机服务。假设您使用的是 Windows 窗体，则需要执行以下操作：

  • 从 WebBrowser 派生一个类
  • 创建一个从 WebBrowser.WebBrowserSite 派生的嵌套类（您可以从嵌套类派生的唯一方法）
  • 覆盖 CreateWebBrowserSiteBase 并返回您的 webbrowser 站点的新实例。
  • 在 webbrowser 站点上实现 IServiceProvider
  • 实现 IServiceProvider.QueryService 以便在请求 IHttpSecurity 服务时返回 IHttpSecurity imepleemntation
  • 处理 IHttpSecurity.OnSecurityProblem 并返回 S_OK
  • 在表单中使用新的网络浏览器

示例代码：

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void webBrowser1_DocumentCompleted(object sender, 
        WebBrowserDocumentCompletedEventArgs e)
    {
        if (e.Url.ToString() == "about:blank")
        {
            //create a certificate mismatch
            webBrowser1.Navigate("https://74.125.225.229");
        }
    }
}
[Guid("6D5140C1-7436-11CE-8034-00AA006009FA")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[ComImport]
public interface UCOMIServiceProvider
{
    [return: MarshalAs(UnmanagedType.I4)]
    [PreserveSig]
    int QueryService(
        [In] ref Guid guidService,
        [In] ref Guid riid,
        [Out] out IntPtr ppvObject);
}
[ComImport()]
[ComVisible(true)]
[Guid("79eac9d5-bafa-11ce-8c82-00aa004ba90b")]
[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
public interface IWindowForBindingUI
{ 
    [return: MarshalAs(UnmanagedType.I4)]
    [PreserveSig]
    int GetWindow(
        [In] ref Guid rguidReason,
        [In, Out] ref IntPtr phwnd);
}

[ComImport()]
[ComVisible(true)]
[Guid("79eac9d7-bafa-11ce-8c82-00aa004ba90b")]
[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
public interface IHttpSecurity
{
    //derived from IWindowForBindingUI
    [return: MarshalAs(UnmanagedType.I4)]
    [PreserveSig]
    int GetWindow(
        [In] ref Guid rguidReason,
        [In, Out] ref IntPtr phwnd);
    [PreserveSig]
    int OnSecurityProblem(
        [In, MarshalAs(UnmanagedType.U4)] uint dwProblem);
}
public class MyWebBrowser : WebBrowser
{
    public static Guid IID_IHttpSecurity 
        = new Guid("79eac9d7-bafa-11ce-8c82-00aa004ba90b");
    public static Guid IID_IWindowForBindingUI 
        = new Guid("79eac9d5-bafa-11ce-8c82-00aa004ba90b");        
    public const int S_OK = 0;
    public const int S_FALSE = 1;
    public const int E_NOINTERFACE = unchecked((int)0x80004002);
    public const int RPC_E_RETRY = unchecked((int)0x80010109);
    protected override WebBrowserSiteBase CreateWebBrowserSiteBase()
    {
        return new MyWebBrowserSite(this);
    }
    class MyWebBrowserSite : WebBrowserSite, 
        UCOMIServiceProvider, 
        IHttpSecurity, 
        IWindowForBindingUI 
    {
        private MyWebBrowser myWebBrowser;
        public MyWebBrowserSite(MyWebBrowser myWebBrowser)
            :base(myWebBrowser)
        {
            this.myWebBrowser = myWebBrowser;
        }
        public int QueryService(ref Guid guidService
            , ref Guid riid
            , out IntPtr ppvObject)
        {
            if (riid ==IID_IHttpSecurity)
            {
                ppvObject= Marshal.GetComInterfaceForObject(this
                    , typeof(IHttpSecurity));
                return S_OK;
            }
            if (riid == IID_IWindowForBindingUI)
            {
                ppvObject = Marshal.GetComInterfaceForObject(this
                    , typeof(IWindowForBindingUI));
                return S_OK;
            }
            ppvObject = IntPtr.Zero;
            return E_NOINTERFACE;
        }

        public int GetWindow(ref Guid rguidReason
            , ref IntPtr phwnd)
        {
            if (rguidReason == IID_IHttpSecurity 
                || rguidReason == IID_IWindowForBindingUI)
            {
                phwnd = myWebBrowser.Handle;
                return S_OK;
            }
            else
            {
                phwnd = IntPtr.Zero;
                return S_FALSE;
            }
        }

        public int OnSecurityProblem(uint dwProblem)
        {
            //ignore errors
            //undocumented return code, does not work on IE6
            return S_OK;
        }
    }
}
于 2013-07-17T15:29:52.507 回答
3

终于想通了。

我一直在尝试绕过作为控制台应用程序运行的无头 IE 浏览器的 SSL 证书错误 ( http://triflejs.org )

盛江提供了大部分答案，但我仍然无法使用Application.Run()，因为它锁定了主线程上的执行，我需要在循环中执行其他事件，而且，ApplicationContext用消息泵实例化一个似乎太复杂了。

一旦我得到它的答案非常简单。只需创建一个循环并运行Application.DoEvents()

这是一些工作代码。我简化了它以适应此处发布的问题。

请确保：

  1. 您正在作为控制台应用程序项目运行。
  2. 您将项目引用添加到System.Windows.Forms.

希望能帮助到你！

using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace IgnoreSSLErrorBrowserConsoleApp
{
    public class Program
    {
        [STAThread]
        public static void Main(string[] args)
        {
            MyWebBrowser browser = new MyWebBrowser();
            browser.Navigate("about:blank");
            browser.DocumentCompleted += delegate (object obj, WebBrowserDocumentCompletedEventArgs e) {
                if (e.Url.ToString() == "about:blank") {
                    // This is the SSL path where certificate error occurs
                    browser.Navigate("https://localhost");
                }
            };
            while (browser.ReadyState != WebBrowserReadyState.Complete) {
                Application.DoEvents();
                // RunOtherEvents();
            }

        }
    }

    [Guid("6D5140C1-7436-11CE-8034-00AA006009FA")]
    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    [ComImport]
    public interface UCOMIServiceProvider
    {
        [return: MarshalAs(UnmanagedType.I4)]
        [PreserveSig]
        int QueryService(
            [In] ref Guid guidService,
            [In] ref Guid riid,
            [Out] out IntPtr ppvObject);
    }
    [ComImport()]
    [ComVisible(true)]
    [Guid("79eac9d5-bafa-11ce-8c82-00aa004ba90b")]
    [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IWindowForBindingUI
    {
        [return: MarshalAs(UnmanagedType.I4)]
        [PreserveSig]
        int GetWindow(
            [In] ref Guid rguidReason,
            [In, Out] ref IntPtr phwnd);
    }

    [ComImport()]
    [ComVisible(true)]
    [Guid("79eac9d7-bafa-11ce-8c82-00aa004ba90b")]
    [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IHttpSecurity
    {
        //derived from IWindowForBindingUI
        [return: MarshalAs(UnmanagedType.I4)]
        [PreserveSig]
        int GetWindow(
            [In] ref Guid rguidReason,
            [In, Out] ref IntPtr phwnd);
        [PreserveSig]
        int OnSecurityProblem(
            [In, MarshalAs(UnmanagedType.U4)] uint dwProblem);
    }
    public class MyWebBrowser : WebBrowser
    {
        public static Guid IID_IHttpSecurity
            = new Guid("79eac9d7-bafa-11ce-8c82-00aa004ba90b");
        public static Guid IID_IWindowForBindingUI
            = new Guid("79eac9d5-bafa-11ce-8c82-00aa004ba90b");
        public const int S_OK = 0;
        public const int S_FALSE = 1;
        public const int E_NOINTERFACE = unchecked((int)0x80004002);
        public const int RPC_E_RETRY = unchecked((int)0x80010109);
        protected override WebBrowserSiteBase CreateWebBrowserSiteBase()
        {
            return new MyWebBrowserSite(this);
        }
        class MyWebBrowserSite : WebBrowserSite,
            UCOMIServiceProvider,
            IHttpSecurity,
            IWindowForBindingUI
        {
            private MyWebBrowser myWebBrowser;
            public MyWebBrowserSite(MyWebBrowser myWebBrowser)
                : base(myWebBrowser)
            {
                this.myWebBrowser = myWebBrowser;
            }
            public int QueryService(ref Guid guidService
                , ref Guid riid
                , out IntPtr ppvObject)
            {
                if (riid == IID_IHttpSecurity)
                {
                    ppvObject = Marshal.GetComInterfaceForObject(this
                        , typeof(IHttpSecurity));
                    return S_OK;
                }
                if (riid == IID_IWindowForBindingUI)
                {
                    ppvObject = Marshal.GetComInterfaceForObject(this
                        , typeof(IWindowForBindingUI));
                    return S_OK;
                }
                ppvObject = IntPtr.Zero;
                return E_NOINTERFACE;
            }

            public int GetWindow(ref Guid rguidReason
                , ref IntPtr phwnd)
            {
                if (rguidReason == IID_IHttpSecurity
                    || rguidReason == IID_IWindowForBindingUI)
                {
                    phwnd = myWebBrowser.Handle;
                    return S_OK;
                }
                else
                {
                    phwnd = IntPtr.Zero;
                    return S_FALSE;
                }
            }

            public int OnSecurityProblem(uint dwProblem)
            {
                //ignore errors
                //undocumented return code, does not work on IE6
                return S_OK;
            }
        }
    }
}
于 2014-01-08T23:09:19.137 回答