使用LdapConnection和LDAPS时出现错误0x80005000

时间:2013-01-08 15:20:29

标签: c# asp.net ldap ldapconnection

在开始之前,我已经访问了Unknown Error (0x80005000) with LDAPS Connection并更改了我的代码,虽然它确实解决了问题但似乎神秘地回来了。

这是好事:

public static bool Authenticate(string username, string password, string domain)
{
    bool authentic = false;

    try
    {
        LdapConnection con = new LdapConnection(
            new LdapDirectoryIdentifier(Host, Port));
        if (IsSSL)
        {
            con.SessionOptions.SecureSocketLayer = true;
            con.SessionOptions.VerifyServerCertificate = ServerCallback;
        }
        con.Credential = new NetworkCredential(username, password);
        con.AuthType = AuthType.Basic;
        con.Bind();
        authentic = true;
    }
    catch (LdapException)
    {
        return false;
    }
    catch (DirectoryServicesCOMException)
    { }
    return authentic;
}

public static bool IsSSL
{
    get
    {
        return ConnectionString.ToLower().Contains("ldaps");
    }
}

public static string ConnectionString
{
    get
    {
        if (string.IsNullOrEmpty(_connectionString))
            _connectionString = CompleteConfiguration.GetLDAPConnectionString();

        return _connectionString;
    }
    set { _connectionString = value; }
}

public static int Port
{
    get
    {
        var x = new Uri(ConnectionString);
        int port = 0;
        if (x.Port != -1)
        {
            port = x.Port;
        }
        else
        {
            port = x.OriginalString.ToLower().Contains("ldaps")
                       ? 636
                       : 389;
        }
        return port;
    }
}

public static string Host
{
    get
    {
        var x = new Uri(ConnectionString);
        return x.Host;
    }
}

private static bool ServerCallback(LdapConnection connection, X509Certificate certificate)
{
    return true;
}

这是坏事: 当我尝试对应用程序进行身份验证时,我收到以下错误,确切地说,这是由con.Bind()行触发的:

[COMException(0x80005000):未知错误(0x80005000)]    System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)+378094    System.DirectoryServices.DirectoryEntry.Bind()+36    System.DirectoryServices.DirectoryEntry.get_NativeObject()+31    在c:\ Builds \ 6 \ Idealink.Open.Pancanal \ Panama Canal \ Sources \ Idealink.Open \ Complete.Authentication \ GCAuthentication.cs中完成.Authentication.GCAuthentication.Authenticate(字符串用户名,字符串密码,字符串域)    在C:\ Builds \ 6 \ Idealink.Open.Pancanal \ Panama Canal \ Sources \ Idealink.Open \ Complete.Authentication \中的Complete.Authentication.AuthenticationFactory.ValidateUserLdap(String username,String password,String domain,Boolean isValid,String usernameWithDomain) AuthenticationFactory.cs:93

由于某些用户帐户似乎有效而其他用户帐户无效,因此非常令人困惑。但是,当我将上述代码放在一个独立的测试环境中时,无论我使用哪个帐户,它都会每次都成功。当我将它放回到带有ASP.NET和IIS的Windows 2008 R2服务器上时,它会失败,如上所述。但失败是一致的 - 账户一直失败或成功,从这个角度看,没有随机性。

必须使用LDAPS和NOT LDAP访问LDAP服务器,这就是我们无法使用DirectoryEntry对象的原因 - LDAP服务器由客户端控制,因此无法以任何方式重新配置或更改。我们只想在Web表单上捕获用户名/密码,然后在LDAP服务器上使用BIND来检查凭据。

我们正在使用.NET 3.5并且此时无法升级所以我恭敬地问,如果您的主要建议和论点要升级,请暂停您的贡献。

谢谢,希望你能帮忙

1 个答案:

答案 0 :(得分:2)

这样的事情对你有用吗??

const string Domain = "ServerAddress:389";
const string constrParts = @"OU=Users,DC=domain,DC=com";
const string Username = @"karell";
PrincipalContext principalContext = new PrincipalContext(ContextType.Domain, Domain, constrParts);
UserPrincipal userPrincipal = UserPrincipal.FindByIdentity(principalContext,  username);

这是一个非常好的网站,可以提供很好的参考和示例 DirectoryServices DirectoryEntry

对于基于SSL的连接,您可以执行以下操作

const int ldapInvalidCredentialsError = 0x31;
const string server = "your_domain.com:636";
const string domain = "your_domain.com";

try
{
    using (var ldapSSLConn = new LdapConnection(server))
    {
        var networkCredential = new NetworkCredential(username, password, domain);
        ldapSSLConn.SessionOptions.SecureSocketLayer = true;
        ldapSSLConn.AuthType = AuthType.Negotiate;
        ldapSSLConn.Bind(networkCredential);
    }

    // If the bind succeeds, the credentials are valid
    return true;
}
catch (LdapException ldapEx)
{
    // Invalid credentials a specific error code
    if (ldapEx.ErrorCode.Equals(ldapInvalidCredentialsError))
    {
        return false;
    }

    throw;
}

MSDN list of Invalid LDAP Error Codes