PHP Login through LDAP Authentication??

ajeetraina · 05-12-2008, 02:18 AM

I have written a PHP Script for user login as we generally retrieve from database.Now I want to allow user to login through LDAP.
How can I go for the same?

Hko · 05-12-2008, 05:31 AM

Here's what I once used:

PHP Code:



define('LDAP_SERVER', 'localhost');
define('LDAP_PORT', 389);
define('LDAP_TOP', 'dc=domain,dc=com');

function LDAPconnect()
{
    $ds = ldap_connect(LDAP_SERVER, LDAP_PORT);
    if (!$ds) {
        return FALSE;
    }
    if (!ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3)) {
        @ldap_close($ds);
        return FALSE;
    }
    return $ds;
}


function LDAPauth($rdn, $passwd)
{
    $ds = LDAPconnect();
    $dn = $rdn .",". LDAP_TOP;

    if (!ldap_bind($ds, $dn, $passwd)) {
        return FALSE;
    }
    return $ds;
}

Needless to say, here's where the details are: http://php.net/ldap

ajeetraina · 05-12-2008, 07:07 AM

I have this code written for login:
----------------------------
File: login.php
---------------------------

Code:

<html><table width="300" border="1" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<p>
<body bgcolor="#d0d0d0">
<img src="helpcore.jpg" align="center">
</p>
<br><iframe src="http://free.timeanddate.com/clock/iz28p1x/n438/fc969/tccff/pcff9/ftb/bas2/bat6/bacf00/tt0/td1/tb3" frameborder="1" width="426" height="22"></iframe>
</br><br>
<tr>
<form name="form1" method="post" action="checklogin.php">
<td>
<table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td colspan="3"><strong>Member Login </strong></td>
</tr>
<tr>
<td width="78">Username</td>
<td width="6">:</td>
<td width="294"><input name="myusername" type="text" id="myusername"></td>
</tr>
<tr>
<td>Password</td>
<td>:</td>
<td><input name="mypassword" type="password" id="mypassword"></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td><input type="submit" name="Submit" value="Login"></td>
<td><br><a href="forget.php"><i>Forgot your password?</i></a><td><a href="register.php">Register</a></td>
</tr>
</table>
</td>
</form>
</tr>
</table>
</html>
~

File:

Code:

<?php
session_start();
$host="localhost"; // Host name
$username="root"; // Mysql username
$password="mysql123"; // Mysql password
$db_name="helpcore"; // Database name
$tbl_name="users"; // Table name

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");

// username and password sent from form
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];

// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string ($mypassword);

$sql="SELECT * FROM $tbl_name WHERE loginname='$myusername' and password='$mypassword'";
$result=mysql_query($sql);

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row

if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
$_SESSION['myusername']=$myusername;
$_SESSION['mypassword']=$mypassword;


#session_register("myusername");
#session_register("mypassword");
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
//echo "You need to register to login.Go Back and click on "Register" button.";
}

?>

Pls help me where should I modify???Since I am newbie for PHP.