PHP 5.3.5 ldap_search（）：搜索：无法联系LDAP服务器

Question

我有一个适用于我们公司所有其他PHP安装的LDAP PHP类。但是，现在我的代码已经从SuSE变成了Ubuntu 11.04。 PHP版本是5.3.5。

我尝试连接到我们的LDAP服务器。连接到它后，我尝试运行ldap_search。它失败并显示错误消息'ldap_search（）：搜索：无法联系LDAP服务器'。 我看了一下使用wireshark的流量，可以看到php和ldap之间发生的通信，唉，没有发生任何连接。

感谢您的想法， 乌韦

这里是我使用的代码：

class ldap{ 
    private $ldap_conn; 
    private $ldaphost; 
    private $ldapport; 

    public function __construct() 
    { 
     $this->ldaphost = 'ldaps://ourserver.co.nz'; // obviously a fake name 
     $this->ldapport = 636; 
     $this->ldap_conn = ldap_connect($this->ldaphost, $this->ldapport) or die("Could not connect to $this->ldaphost"); 
    } 

    public function signin ($username,$password, $applicationName) 
    { 
     $dn = "o=MY_COM"; 
     $filter="(cn=$username)"; 

     $justthese = array("dn","fullname", "mail"); 

     $sr=ldap_search($this->ldap_conn, $dn, $filter, $justthese); 

     $people = ldap_get_entries($this->ldapconn, $sr); 

     if (!$people || count($people) == 0 || $people['count'] == 0) 
     { //Nothing found, quit. 
      return AUTH_ERROR_NO_DN; 
     } 

     $dn = ($people[0]['dn']); 

     if (($dn!='')&&($password!='')) 
     { 
      $loginStatus = @ldap_bind($this->ldapconn, $dn, $password); 
      if ($loginStatus) 
      { 
       $fullname = $people[0]['fullname'][0]; 
       if ($fullname=='') 
       { 
        $fullname =$dn; 
       } 
       $user = array(
        'logged_in_dn' => $dn, 
        'password'  => $password, 
        'username'  => $fullname, 
        'cn'   => $username, 
        'mail'   => $people[0]['mail'][0], 
        'status'  => 'AUTHENTICATED' 
       ); 
      } else 
      { 
       $user = array(
        'status'=> array('AUTH_ERROR_WRONG_PASSWORD'), 
        'details'  => array(    
        'logged_in_dn' => '', 
        'password'  => '', 
        'username'  => '', 
        'cn'   => '', 
        'mail'   => '', 
        'status'  => 'AUTHENTICATED' 
        ) 
       );  
      } 
     } else 
     { 
       $user = array(
        'status'=> array('AUTH_ERROR_NO_DN'), 
        'details'  => array(    
        'logged_in_dn' => '', 
        'password'  => '', 
        'username'  => '', 
        'cn'   => '', 
        'mail'   => '', 
        'status'  => 'AUTHENTICATED' 
        ) 
       );  
     } 
     return $user; 
    } 

这是执行方法的单元测试： 类unit_ldapConnectTest扩展TadPhpUnitTestCase

{ 

    function testLdapconnection() { 
    $ldap = new LDAP(); 
    $user = $ldap->signin('myname','password',''); 


    } 
} 

Answer 1

这可能是LDAP版本问题。

在调用ldap_connect电话是：

ldap_set_option($this->ldap_conn, LDAP_OPT_PROTOCOL_VERSION, 3);