Form kimlik doðrulamasý ve Visual Basic .NET kullanarak Active Directory karþý nasýl

Üste

Visual Basic. NET'te bir ASP.NET Web uygulamasý oluþturma

1. Microsoft Visual Studio .NET'i baþlatýn.
2. Dosya menüsünde Yeni ' nin üzerine gelin ve sonra Project ' i týklatýn.
3. Project Types altýnda Visual Basic Projects ' ý týklatýn ve ASP.NET Web uygulamasýþablonlarý altýnda týklatýn.
4. Konum kutusuna http:// <servername>/FormsAuthAd yazýn... (Http://localhost (http://localhost/FormsAuthAd varsa ve Tamam ' ý týklatýn þekilde. yerel sunucuyu kullanýyorsanýz, deðiþtirme
5. Solution Explorer <a1>Baþvurular</a1> düðümünü sað týklatýn ve sonra da Add Reference</a1>'ý týklatýn.
6. .NET sekmesinde <a0>Baþvuru Ekle</a0> iletiþim kutusunda, System.DirectoryServices.dll ' ý týklatýn, sonra da Seç ' i týklatýn ve sonra Tamam ' ý týklatýn.

Üste

Kimlik doðrulama kodu yazýn

1. Solution Explorer'da (Çözüm Gezgini), proje düðümünü sað týklatýn, sonra da Ekle iþaret ve sonra Yeni Öðe Ekle'yi týklatýn.
2. Sýnýfþablon altýnda'ý týklatýn.
3. LdapAuthentication.vb ' ý <a2>ad</a2> kutusuna yazýn ve Aç ' ý týklatýn.
4. Varolan LdapAuthentication.vb dosyasýndaki kodu aþaðýdaki kodla deðiþtirin:

   Imports System
   Imports System.Text
   Imports System.Collections
   Imports System.DirectoryServices
   
   Namespace FormsAuth
       Public Class LdapAuthentication
   
           Dim _path As String
           Dim _filterAttribute As String
   
           Public Sub New(ByVal path As String)
               _path = path
           End Sub
   
           Public Function IsAuthenticated(ByVal domain As String, ByVal username As String, ByVal pwd As String) As Boolean
   
               Dim domainAndUsername As String = domain & "\" & username
               Dim entry As DirectoryEntry = New DirectoryEntry(_path, domainAndUsername, pwd)
   
               Try
                   'Bind to the native AdsObject to force authentication.			
                   Dim obj As Object = entry.NativeObject
                   Dim search As DirectorySearcher = New DirectorySearcher(entry)
   
                   search.Filter = "(SAMAccountName=" & username & ")"
                   search.PropertiesToLoad.Add("cn")
                   Dim result As SearchResult = search.FindOne()
   
                   If (result Is Nothing) Then
                       Return False
                   End If
   
                   'Update the new path to the user in the directory.
                   _path = result.Path
                   _filterAttribute = CType(result.Properties("cn")(0), String)
   
               Catch ex As Exception
                   Throw New Exception("Error authenticating user. " & ex.Message)
               End Try
   
               Return True
           End Function
   
           Public Function GetGroups() As String
               Dim search As DirectorySearcher = New DirectorySearcher(_path)
               search.Filter = "(cn=" & _filterAttribute & ")"
               search.PropertiesToLoad.Add("memberOf")
               Dim groupNames As StringBuilder = New StringBuilder()
   
               Try
                   Dim result As SearchResult = search.FindOne()
                   Dim propertyCount As Integer = result.Properties("memberOf").Count
   
                   Dim dn As String
                   Dim equalsIndex, commaIndex
   
                   Dim propertyCounter As Integer
   
                   For propertyCounter = 0 To propertyCount - 1
                       dn = CType(result.Properties("memberOf")(propertyCounter), String)
   
                       equalsIndex = dn.IndexOf("=", 1)
                       commaIndex = dn.IndexOf(",", 1)
                       If (equalsIndex = -1) Then
                           Return Nothing
                       End If
   
                       groupNames.Append(dn.Substring((equalsIndex + 1), (commaIndex - equalsIndex) - 1))
                       groupNames.Append("|")
                   Next
   
               Catch ex As Exception
                   Throw New Exception("Error obtaining group names. " & ex.Message)
               End Try
   
               Return groupNames.ToString()
           End Function
       End Class
   End Namespace
   
   
   					

Kod açýklamasý

Kullanýcý kimlik doðrulamasý

Kullanýcý gruplarý

CN=...,...,DC=domain,DC=com
				

Üste

Global.asax kod yazma

1. Solution Explorer'da (Çözüm Gezgini), Global.asax ' ý sað týklatýn ve Kod Görüntüle</a1>'ý týklatýn.
2. Üst Global.asax.vb dosya arkasýndaki kodu, aþaðýdaki kodu ekleyin:

   Imports System.Web.Security
   Imports System.Security.Principal
   					

3. Varolan boþ olay iþleyici için Application_AuthenticateRequest aþaðýdaki kodla deðiþtirin:

   Sub Application_AuthenticateRequest(ByVal sender As Object, ByVal e As EventArgs)
           ' Fires upon attempting to authenticate the use
           Dim cookieName As String = FormsAuthentication.FormsCookieName
           Dim authCookie As HttpCookie = Context.Request.Cookies(cookieName)
   
           If (authCookie Is Nothing) Then
               'There is no authentication cookie.
               Return
           End If
   
           Dim authTicket As FormsAuthenticationTicket = Nothing
   
           Try
               authTicket = FormsAuthentication.Decrypt(authCookie.Value)
           Catch ex As Exception
               'Write the exception to the Event Log.
               Return
           End Try
   
           If (authTicket Is Nothing) Then
               'Cookie failed to decrypt.
               Return
           End If
   
           'When the ticket was created, the UserData property was assigned a
           'pipe-delimited string of group names.
           Dim groups As String() = authTicket.UserData.Split(New Char() {"|"})
   
           'Create an Identity.
           Dim id As GenericIdentity = New GenericIdentity(authTicket.Name, "LdapAuthentication")
   
           'This principal flows throughout the request.
           Dim principal As GenericPrincipal = New GenericPrincipal(id, groups)
   
           Context.User = principal
   
       End Sub
   					

Üste

Web.config dosyasýný deðiþtirme

<?xml version="1.0" encoding="utf-8" ?>
<configuration>    
  <system.web>
    <authentication mode="Forms">
      <forms loginUrl="logon.aspx" name="adAuthCookie" timeout="60" path="/" >
      </forms>
    </authentication>	
    <authorization>	
      <deny users="?" />
      <allow users="*" />
    </authorization>	
    <identity impersonate="true" />
  </system.web>
</configuration>
				

Üste

IIS anonim kimlik doðrulamasý için yapýlandýrma

1. ýnternet ýnformation Services (IIS) yönetim konsolunda, "FormsAuthAd" için sanal dizin düðümünü sað týklatýn.
2. Özellikler ' i týklatýn ve sonra Dizin Güvenliði</a0> sekmesini týklatýn.
3. Anonim eriþim ve doðrulama denetimi altýnda Düzenle ' yi týklatýn.
4. <a0>Anonim eriþim</a0> onay kutusunu seçin.
5. Uygulama anonim hesap için Active Directory iznine sahip bir hesabýn olun.
6. Temizleyin IIS denetime izin ver parola onay kutusu.

Üste

Logon.aspx sayfasýna oluþturma

1. Solution Explorer'da (Çözüm Gezgini), proje düðümünü sað týklatýn, sonra da Ekle iþaret ve Web formu Ekle</a1>'ý týklatýn.
2. Logon.aspx <a2>ad</a2> kutusuna yazýn ve sonra Aç ' ý týklatýn.
3. Solution Explorer'da (Çözüm Gezgini), Logon.aspx ' ý sað týklatýn ve sonra da Görünüm Designer ' ý týklatýn.
4. Tasarýmcý <a1>HTML</a1> sekmesini týklatýn.
5. Replace the existing code with the following code:

   <%@ Page language="vb" AutoEventWireup="true" %>
   <%@ Import Namespace="FormsAuthAd.FormsAuth" %>
   <html>
   	<body>
   		<form id="Login" method="post" runat="server">
   			<asp:Label ID="Label1" Runat="server">Domain:</asp:Label>
   			<asp:TextBox ID="txtDomain" Runat="server"></asp:TextBox><br>
   			<asp:Label ID="Label2" Runat="server">Username:</asp:Label>
   			<asp:TextBox ID="txtUsername" Runat="server"></asp:TextBox><br>
   			<asp:Label ID="Label3" Runat="server">Password:</asp:Label>
   			<asp:TextBox ID="txtPassword" Runat="server" TextMode="Password"></asp:TextBox><br>
   			<asp:Button ID="btnLogin" Runat="server" Text="Login" OnClick="Login_Click"></asp:Button><br>
   			<asp:Label ID="errorLabel" Runat="server" ForeColor="#ff3300"></asp:Label><br>
   			<asp:CheckBox ID="chkPersist" Runat="server" Text="Persist Cookie" />
   		</form>
   	</body>
   </html>
   <script runat="server">
   sub Login_Click(sender as object,e as EventArgs)
     Dim adPath as String = "LDAP://DC=..,DC=.." 'Path to your LDAP directory server
     Dim adAuth as LdapAuthentication = new LdapAuthentication(adPath)
     try
       if(true = adAuth.IsAuthenticated(txtDomain.Text, txtUsername.Text, txtPassword.Text)) then
         Dim groups as string = adAuth.GetGroups()
   
         'Create the ticket, and add the groups.
         Dim isCookiePersistent as boolean = chkPersist.Checked
         Dim authTicket as FormsAuthenticationTicket = new FormsAuthenticationTicket(1, _
              txtUsername.Text,DateTime.Now, DateTime.Now.AddMinutes(60), isCookiePersistent, groups)
   	
         'Encrypt the ticket.
         Dim encryptedTicket as String = FormsAuthentication.Encrypt(authTicket)
   		
         'Create a cookie, and then add the encrypted ticket to the cookie as data.
         Dim authCookie as HttpCookie = new HttpCookie(FormsAuthentication.FormsCookieName, encryptedTicket)
   
         if(isCookiePersistent = true) then
   		authCookie.Expires = authTicket.Expiration
         end if				
         'Add the cookie to the outgoing cookies collection.
         Response.Cookies.Add(authCookie)	
   
         'You can redirect now.
         Response.Redirect(FormsAuthentication.GetRedirectUrl(txtUsername.Text, false))
       
       else
         errorLabel.Text = "Authentication did not succeed. Check user name and password."
       end if
    
     catch ex as Exception
       errorLabel.Text = "Error authenticating. " & ex.Message
     end try
   end sub
   </script>
   					

6. Logon.aspx sayfasýnda, LDAP Dizin sunucusuna iþaret edecek biçimde yolu deðiþtirin.

• bir FormsAuthenticationTicket; oluþturur
• bilet; þifreler.
• þifrelenmiþ anahtar için bir tanýmlama bilgisi; ekler.
• HttpResponse.Cookies derlemesine; tanýmlama bilgisi ekler
• istek, özgün olarak istenen URL'YE yönlendirir.

Üste

WebForm1.aspx sayfayý deðiþtirin.

1. Solution Explorer'da (Çözüm Gezgini), WebForm1.aspx dosyasýný sað týklatýn ve Görünüm Tasarýmcýsý</a1>'ý týklatýn.
2. Tasarýmcý <a1>HTML</a1> sekmesini týklatýn.
3. Varolan kodu aþaðýdaki kodla deðiþtirin:

   <%@ Page language="vb" AutoEventWireup="true" %>
   <%@ Import Namespace="System.Security.Principal" %>
   <html>
   	<body>
   		<form id="Form1" method="post" runat="server">
   			<asp:Label ID="lblName" Runat="server" /><br>
   			<asp:Label ID="lblAuthType" Runat="server" />
   		</form>
   	</body>
   </html>
   <script runat="server">
   sub Page_Load(sender as object, e as EventArgs)
     lblName.Text = "Hello " + Context.User.Identity.Name & "."
     lblAuthType.Text = "You were authenticated using " &   Context.User.Identity.AuthenticationType & "."
   end sub
   </script>
   					

4. Tüm dosyalarý kaydedin ve sonra Projeyi derleyin.
5. WebForm1.aspx sayfa isteyin. Logon.aspx için yönlendirileceði dikkat edin.
6. Oturum açma kimlik bilgilerini yazýn ve ardýndan Gönder ' i týklatýn. WebForm1.aspx yeniden yönlendirilmesi sýrasýnda kullanýcý adýnýzý görünür dikkat edin ve LdapAuthentication kimlik olduðunu Context.User.Identity.AuthenticationType özelliði için yazýn.

Üste