2013-10-11 89 views
3

我有一些路由器配置頁的URL,我必須加載它們,設置和保存它。我使用網頁瀏覽器控件和.Net 4.5和C#語言。但每次頁面加載時,都會彈出Windows安全性並要求輸入用戶名和密碼。它發生在每個URL上。我怎樣才能防止呢?所有網址的用戶名和密碼都相同。我怎樣才能使用硬編碼爲所有人設置用戶名和密碼? Windows Security window防止顯示Windows安全窗口

回答

7

你需要通過IServiceProvider提供IAuthenticate COM接口的實現到WebBrowser對象。當WebBrowser正在處理需要基本或Windows身份驗證的資源時,將會調用IAuthenticate::Authenticate的實現,從而使您有機會提供正確的用戶名和密碼。

以下是如何通過WebBrowserIProfferService完成此操作的完整示例。

using Microsoft.Win32; 
using System; 
using System.Diagnostics; 
using System.Threading; 
using System.Threading.Tasks; 
using System.Windows.Forms; 
using System.Runtime.InteropServices; 

namespace WebBrowserAuthApp 
{ 
    [ComVisible(true)] 
    [ClassInterface(ClassInterfaceType.None)] 
    public partial class MainForm : Form, 
     ComExt.IServiceProvider, 
     ComExt.IAuthenticate 
    { 
     WebBrowser webBrowser; 
     uint _authenticateServiceCookie = ComExt.INVALID; 
     ComExt.IProfferService _profferService = null; 

     CancellationTokenSource _navigationCts = null; 
     Task _navigationTask = null; 

     public MainForm() 
     { 
      SetBrowserFeatureControl(); 

      InitializeComponent(); 

      InitBrowser(); 

      this.Load += (s, e) => 
      { 
       _navigationCts = new CancellationTokenSource(); 
       _navigationTask = DoNavigationAsync(_navigationCts.Token); 
      }; 
     } 

     // create a WebBrowser instance (could use an existing one) 
     void InitBrowser() 
     { 
      this.webBrowser = new WebBrowser(); 
      this.webBrowser.Dock = DockStyle.Fill; 
      this.Controls.Add(this.webBrowser); 
      this.webBrowser.Visible = true; 
     } 

     // main navigation task 
     async Task DoNavigationAsync(CancellationToken ct) 
     { 
      // navigate to a blank page first to initialize webBrowser.ActiveXInstance 
      await NavigateAsync(ct, "about:blank"); 

      // set up IAuthenticate as service via IProfferService 
      var ax = this.webBrowser.ActiveXInstance; 
      var serviceProvider = (ComExt.IServiceProvider)ax; 
      serviceProvider.QueryService(out _profferService); 
      _profferService.ProfferService(typeof(ComExt.IAuthenticate).GUID, this, ref _authenticateServiceCookie); 

      // navigate to a website which requires basic authentication 
      // e.g.: http://www.httpwatch.com/httpgallery/authentication/ 
      string html = await NavigateAsync(ct, "http://www.httpwatch.com/httpgallery/authentication/authenticatedimage/default.aspx"); 
      MessageBox.Show(html); 
     } 

     // asynchronous navigation 
     async Task<string> NavigateAsync(CancellationToken ct, string url) 
     { 
      var onloadTcs = new TaskCompletionSource<bool>(); 
      EventHandler onloadEventHandler = null; 

      WebBrowserDocumentCompletedEventHandler documentCompletedHandler = delegate 
      { 
       // DocumentCompleted may be called several time for the same page, 
       // beacuse of frames 
       if (onloadEventHandler != null || onloadTcs == null || onloadTcs.Task.IsCompleted) 
        return; 

       // handle DOM onload event to make sure the document is fully loaded 
       onloadEventHandler = (s, e) => 
        onloadTcs.TrySetResult(true); 
       this.webBrowser.Document.Window.AttachEventHandler("onload", onloadEventHandler); 
      }; 

      try 
      { 
       this.webBrowser.DocumentCompleted += documentCompletedHandler; 
       using (ct.Register(() => onloadTcs.TrySetCanceled(), useSynchronizationContext: true)) 
       { 
        this.webBrowser.Navigate(url); 
        // wait for DOM onload, throw if cancelled 
        await onloadTcs.Task; 
       } 
      } 
      finally 
      { 
       this.webBrowser.DocumentCompleted -= documentCompletedHandler; 
       if (onloadEventHandler != null) 
        this.webBrowser.Document.Window.DetachEventHandler("onload", onloadEventHandler); 
      } 

      return this.webBrowser.Document.GetElementsByTagName("html")[0].OuterHtml; 
     } 

     // shutdown 
     protected override void OnClosed(EventArgs e) 
     { 
      if (_navigationCts != null && _navigationCts != null && !_navigationTask.IsCompleted) 
      { 
       _navigationCts.Cancel(); 
       _navigationCts.Dispose(); 
       _navigationCts = null; 
      } 
      if (_authenticateServiceCookie != ComExt.INVALID) 
      { 
       _profferService.RevokeService(_authenticateServiceCookie); 
       _authenticateServiceCookie = ComExt.INVALID; 
       Marshal.ReleaseComObject(_profferService); 
       _profferService = null; 
      } 
     } 

     #region ComExt.IServiceProvider 
     public int QueryService(ref Guid guidService, ref Guid riid, ref IntPtr ppvObject) 
     { 
      if (guidService == typeof(ComExt.IAuthenticate).GUID) 
      { 
       return this.QueryInterface(ref riid, ref ppvObject); 
      } 
      return ComExt.E_NOINTERFACE; 
     } 
     #endregion 

     #region ComExt.IAuthenticate 
     public int Authenticate(ref IntPtr phwnd, ref string pszUsername, ref string pszPassword) 
     { 
      phwnd = IntPtr.Zero; 
      pszUsername = "httpwatch"; 
      pszPassword = String.Empty; 
      return ComExt.S_OK; 
     } 
     #endregion 

     // Browser version control 
     // http://msdn.microsoft.com/en-us/library/ee330730(v=vs.85).aspx#browser_emulation 
     private void SetBrowserFeatureControl() 
     { 
      // FeatureControl settings are per-process 
      var fileName = System.IO.Path.GetFileName(Process.GetCurrentProcess().MainModule.FileName); 

      // make the control is not running inside Visual Studio Designer 
      if (String.Compare(fileName, "devenv.exe", true) == 0 || String.Compare(fileName, "XDesProc.exe", true) == 0) 
       return; 

      // Webpages containing standards-based !DOCTYPE directives are displayed in IE9/IE10 Standards mode. 
      SetBrowserFeatureControlKey("FEATURE_BROWSER_EMULATION", fileName, 9000); 
     } 

     private void SetBrowserFeatureControlKey(string feature, string appName, uint value) 
     { 
      // http://msdn.microsoft.com/en-us/library/ee330720(v=vs.85).aspx 
      using (var key = Registry.CurrentUser.CreateSubKey(
       String.Concat(@"Software\Microsoft\Internet Explorer\Main\FeatureControl\", feature), 
       RegistryKeyPermissionCheck.ReadWriteSubTree)) 
      { 
       key.SetValue(appName, (UInt32)value, RegistryValueKind.DWord); 
      } 
     } 

    } 

    // COM interfaces and helpers 
    public static class ComExt 
    { 
     public const int S_OK = 0; 
     public const int E_NOINTERFACE = unchecked((int)0x80004002); 
     public const int E_UNEXPECTED = unchecked((int)0x8000ffff); 
     public const int E_POINTER = unchecked((int)0x80004003); 
     public const uint INVALID = unchecked((uint)-1); 

     static public void QueryService<T>(this IServiceProvider serviceProvider, out T service) where T : class 
     { 
      Type type = typeof(T); 
      IntPtr unk = IntPtr.Zero; 
      int result = serviceProvider.QueryService(type.GUID, type.GUID, ref unk); 
      if (unk == IntPtr.Zero || result != S_OK) 
       throw new COMException(
        new StackFrame().GetMethod().Name, 
        result != S_OK ? result : E_UNEXPECTED); 
      try 
      { 
       service = (T)Marshal.GetTypedObjectForIUnknown(unk, type); 
      } 
      finally 
      { 
       Marshal.Release(unk); 
      } 
     } 

     static public int QueryInterface(this object provider, ref Guid riid, ref IntPtr ppvObject) 
     { 
      if (ppvObject != IntPtr.Zero) 
       return E_POINTER; 

      IntPtr unk = Marshal.GetIUnknownForObject(provider); 
      try 
      { 
       return Marshal.QueryInterface(unk, ref riid, out ppvObject); 
      } 
      finally 
      { 
       Marshal.Release(unk); 
      } 
     } 

     #region IServiceProvider Interface 
     [ComImport()] 
     [Guid("6d5140c1-7436-11ce-8034-00aa006009fa")] 
     [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 
     public interface IServiceProvider 
     { 
      [PreserveSig] 
      int QueryService(
       [In] ref Guid guidService, 
       [In] ref Guid riid, 
       [In, Out] ref IntPtr ppvObject); 
     } 
     #endregion 

     #region IProfferService Interface 
     [ComImport()] 
     [Guid("cb728b20-f786-11ce-92ad-00aa00a74cd0")] 
     [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 
     public interface IProfferService 
     { 
      void ProfferService(ref Guid guidService, IServiceProvider psp, ref uint cookie); 

      void RevokeService(uint cookie); 
     } 
     #endregion 

     #region IAuthenticate Interface 
     [ComImport()] 
     [Guid("79eac9d0-baf9-11ce-8c82-00aa004ba90b")] 
     [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 
     public interface IAuthenticate 
     { 
      [PreserveSig] 
      int Authenticate([In, Out] ref IntPtr phwnd, 
       [In, Out, MarshalAs(UnmanagedType.LPWStr)] ref string pszUsername, 
       [In, Out, MarshalAs(UnmanagedType.LPWStr)] ref string pszPassword); 
     } 
     #endregion 
    } 
} 
+1

這是偉大的。謝謝。但如何學習這些東西? – Kumar

0

我發現這是非常簡單的答案.....

 Uri u = new Uri("http://your_domain"); 
     UriBuilder ub = new UriBuilder(u); 
     ub.UserName = "username"; 
     ub.Password = "password"; 
     webBrowser1.Url = ub.Uri;