01.<%@ Assembly Name="System.DirectoryServices, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"%>
02.<%@ Import Namespace="System.DirectoryServices"%>
03.<%@ Import Namespace="System.Security.Cryptography"%>
04.<%@ Import Namespace="System.Text"%>
05.<%@ Page Language="C#" %>
06.<script runat="server">
07.
08.string initLDAPPath = "dc=tc, dc=thaicreate, dc=com";
09.string initLDAPServer = "192.168.0.5";
10.string initShortDomainName = "tc";
11.string strErrMsg;
12.
13.
14. public string MD5(string strString) {
15. ASCIIEncoding ASCIIenc = new ASCIIEncoding();
16. string strReturn;
17. byte[] ByteSourceText = ASCIIenc.GetBytes(strString);
18. MD5CryptoServiceProvider Md5Hash = new MD5CryptoServiceProvider();
19. byte[] ByteHash = Md5Hash.ComputeHash(ByteSourceText);
20. strReturn = "";
21. foreach (byte b in ByteHash) {
22. strReturn = (strReturn + b.ToString("x2"));
23. }
24. return strReturn;
25. }
26.
27. void Page_Load(object sender, EventArgs e) {
28. }
29.
30. protected void btnLogin_Click(object sender, System.EventArgs e) {
31. string DomainAndUsername = "";
32. string strCommu;
33. bool flgLogin = false;
35. + (initLDAPServer + ("/" + initLDAPPath)));
36. DomainAndUsername = (initShortDomainName + ("\\" + txtUser.Text));
37. DirectoryEntry entry = new DirectoryEntry(strCommu, DomainAndUsername, txtPwd.Text);
38. object obj;
39. try {
40. obj = entry.NativeObject;
41. DirectorySearcher search = new DirectorySearcher(entry);
42. SearchResult result;
43. search.Filter = ("(SAMAccountName="
44. + (txtUser.Text + ")"));
45. search.PropertiesToLoad.Add("cn");
46. result = search.FindOne();
47. if ((result == null)) {
48. flgLogin = false;
49. strErrMsg = "Please check user/password";
50. }
51. else {
52. flgLogin = true;
53. }
54. }
55. catch (Exception ex) {
56. flgLogin = false;
57. strErrMsg = "Please check user/password";
58. }
59. if ((flgLogin == true)) {
60. this.lbDisplay.Text = ("Welcome " + txtUser.Text);
61. }
62. else {
63. this.lbDisplay.Text = strErrMsg;
64. }
65. }
66.</script>
67.
68.<html>
69.<head>
70.<title>ThaiCreate.Com</title>
71.</head>
72. <body>
73. <form id="form1" runat="server">
74. <asp:TextBox ID="txtUser" runat="server" Width="147px"></asp:TextBox>
75. <asp:TextBox ID="txtPwd" runat="server" Width="147px" TextMode="Password"></asp:TextBox>
76. <asp:Button ID="btnLogin" runat="server" Text="Login" OnClick="btnLogin_Click" />
77. <br />
78. <asp:Label ID="lbDisplay" runat="server"></asp:Label>
79. </form>
80.</body>
81.</HTML>
C#
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