.net 核心中的 LDAPConnection 绑定超时

Question

我无法在 .net 核心中找到有关 LdapConnection 绑定超时的任何信息。一种解决方案是但它在 .net 核心中不起作用。 LdapConnection 超时和绑定超时似乎是不同的东西。我的代码如下

   var credentials = new NetworkCredential(obj.AdminBindUserName, obj.AdminBindPassword);

            if (obj.LDAPAddressPort.HasValue && obj.LDAPAddressPort > 0)
            {
                connection = new LdapConnection(new LdapDirectoryIdentifier(obj.LDAPAddress, obj.LDAPAddressPort.Value, false, false));
                //connection = new LdapConnection(new LdapDirectoryIdentifier(obj.LDAPAddress, obj.LDAPAddressPort));connection = new LdapConnection(new LdapDirectoryIdentifier(obj.LDAPAddress, obj.LDAPAddressPort));
            }
            else
            {
                connection = new LdapConnection(obj.LDAPAddress);
            }
             //connection.Timeout = new TimeSpan(0,0,5);   
            connection.SessionOptions.ProtocolVersion = 3;
            connection.AuthType = AuthType.Basic;           
            connection.Bind(credentials);

我试过连接超时，但看起来没有效果。我收到异常消息 ExceptionCode: 81,Message: LDAP 服务器在随机时间间隔内不可用。有时 18 秒，有时超过一分钟。我正在通过 vpn 连接的帮助重现问题。我的本地 ldap 通过首先连接到某个 vpn 进行连接。使用 vpn 连接一切正常。但是如果没有 vpn，我对 Bind() 方法的调用将无限期地等待

Answer 1

可以使用 Task 设置超时，一旦达到以秒为单位的超时，就会发生取消事件以退出此事件，如下所示

if (obj.IsBindTimeLimit)
            {
                int timeoutSecond = obj.BindTimeOutInSeconds;
                if (timeoutSecond <= 0)
                {
                    timeoutSecond = 5;
                }
                CancellationToken tscancel = new CancellationToken();
                Task t = Task.Run(() =>
                {
                    var credentials = new NetworkCredential(obj.AdminBindUserName, obj.AdminBindPassword);
                    if (obj.LDAPAddressPort.HasValue && obj.LDAPAddressPort > 0)
                    {
                        connection = new LdapConnection(new LdapDirectoryIdentifier(obj.LDAPAddress, obj.LDAPAddressPort.Value, false, false));
                    }
                    else
                    {
                        connection = new LdapConnection(obj.LDAPAddress);
                    }                  
                    connection.SessionOptions.ProtocolVersion = 3;
                    connection.AuthType = AuthType.Basic;
                    connection.Bind(credentials);
                });
              
                if (!t.Wait(timeoutSecond * 1000, tscancel))
                {                    
                    throw new TimeoutException("The timeout interval elapsed");
                }

            }
            else
            {
                var credentials = new NetworkCredential(obj.AdminBindUserName, obj.AdminBindPassword);
                if (obj.LDAPAddressPort.HasValue && obj.LDAPAddressPort > 0)
                {
                    connection = new LdapConnection(new LdapDirectoryIdentifier(obj.LDAPAddress, obj.LDAPAddressPort.Value, false, false));
                }
                else
                {
                    connection = new LdapConnection(obj.LDAPAddress);
                }               
                connection.SessionOptions.ProtocolVersion = 3;
                connection.AuthType = AuthType.Basic;
                connection.Bind(credentials);
            }

.net 核心中的 LDAPConnection 绑定超时

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