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Current File : /var/www/html/hpsc/../informatica/libraries/joomla/client/ldap.php
<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Client
 *
 * @copyright   Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

/**
 * LDAP client class
 *
 * @since  12.1
 */
class JClientLdap
{
	/**
	 * @var    string  Hostname of LDAP server
	 * @since  12.1
	 */
	public $host = null;

	/**
	 * @var    bool  Authorization Method to use
	 * @since  12.1
	 */
	public $auth_method = null;

	/**
	 * @var    int  Port of LDAP server
	 * @since  12.1
	 */
	public $port = null;

	/**
	 * @var    string  Base DN (e.g. o=MyDir)
	 * @since  12.1
	 */
	public $base_dn = null;

	/**
	 * @var    string  User DN (e.g. cn=Users,o=MyDir)
	 * @since  12.1
	 */
	public $users_dn = null;

	/**
	 * @var    string  Search String
	 * @since  12.1
	 */
	public $search_string = null;

	/**
	 * @var    boolean  Use LDAP Version 3
	 * @since  12.1
	 */
	public $use_ldapV3 = null;

	/**
	 * @var    boolean  No referrals (server transfers)
	 * @since  11.1
	 */
	public $no_referrals = null;

	/**
	 * @var    boolean  Negotiate TLS (encrypted communications)
	 * @since  12.1
	 */
	public $negotiate_tls = null;

	/**
	 * @var    string  Username to connect to server
	 * @since  12.1
	 */
	public $username = null;

	/**
	 *
	 * @var    string  Password to connect to server
	 * @since  12.1
	 */
	public $password = null;

	/**
	 * @var    mixed  LDAP Resource Identifier
	 * @since  12.1
	 */
	private $_resource = null;

	/**
	 *
	 * @var    string  Current DN
	 * @since  12.1
	 */
	private $_dn = null;

	/**
	 * Constructor
	 *
	 * @param   object  $configObj  An object of configuration variables
	 *
	 * @since   12.1
	 */
	public function __construct($configObj = null)
	{
		if (is_object($configObj))
		{
			$vars = get_class_vars(get_class($this));

			foreach (array_keys($vars) as $var)
			{
				if (substr($var, 0, 1) != '_')
				{
					$param = $configObj->get($var);

					if ($param)
					{
						$this->$var = $param;
					}
				}
			}
		}
	}

	/**
	 * Connect to server
	 *
	 * @return  boolean  True if successful
	 *
	 * @since   12.1
	 */
	public function connect()
	{
		if ($this->host == '')
		{
			return false;
		}

		$this->_resource = @ ldap_connect($this->host, $this->port);

		if ($this->_resource)
		{
			if ($this->use_ldapV3)
			{
				if (!@ldap_set_option($this->_resource, LDAP_OPT_PROTOCOL_VERSION, 3))
				{
					return false;
				}
			}

			if (!@ldap_set_option($this->_resource, LDAP_OPT_REFERRALS, (int) $this->no_referrals))
			{
				return false;
			}

			if ($this->negotiate_tls)
			{
				if (!@ldap_start_tls($this->_resource))
				{
					return false;
				}
			}

			return true;
		}
		else
		{
			return false;
		}
	}

	/**
	 * Close the connection
	 *
	 * @return  void
	 *
	 * @since   12.1
	 */
	public function close()
	{
		@ ldap_close($this->_resource);
	}

	/**
	 * Sets the DN with some template replacements
	 *
	 * @param   string  $username  The username
	 * @param   string  $nosub     ...
	 *
	 * @return  void
	 *
	 * @since   12.1
	 */
	public function setDn($username, $nosub = 0)
	{
		if ($this->users_dn == '' || $nosub)
		{
			$this->_dn = $username;
		}
		elseif (strlen($username))
		{
			$this->_dn = str_replace('[username]', $username, $this->users_dn);
		}
		else
		{
			$this->_dn = '';
		}
	}

	/**
	 * Get the DN
	 *
	 * @return  string  The current dn
	 *
	 * @since   12.1
	 */
	public function getDn()
	{
		return $this->_dn;
	}

	/**
	 * Anonymously binds to LDAP directory
	 *
	 * @return  array
	 *
	 * @since   12.1
	 */
	public function anonymous_bind()
	{
		$bindResult = @ldap_bind($this->_resource);

		return $bindResult;
	}

	/**
	 * Binds to the LDAP directory
	 *
	 * @param   string  $username  The username
	 * @param   string  $password  The password
	 * @param   string  $nosub     ...
	 *
	 * @return  boolean
	 *
	 * @since   12.1
	 */
	public function bind($username = null, $password = null, $nosub = 0)
	{
		if (is_null($username))
		{
			$username = $this->username;
		}

		if (is_null($password))
		{
			$password = $this->password;
		}

		$this->setDn($username, $nosub);
		$bindResult = @ldap_bind($this->_resource, $this->getDn(), $password);

		return $bindResult;
	}

	/**
	 * Perform an LDAP search using comma separated search strings
	 *
	 * @param   string  $search  search string of search values
	 *
	 * @return  array  Search results
	 *
	 * @since   12.1
	 */
	public function simple_search($search)
	{
		$results = explode(';', $search);

		foreach ($results as $key => $result)
		{
			$results[$key] = '(' . $result . ')';
		}

		return $this->search($results);
	}

	/**
	 * Performs an LDAP search
	 *
	 * @param   array   $filters     Search Filters (array of strings)
	 * @param   string  $dnoverride  DN Override
	 * @param   array   $attributes  An array of attributes to return (if empty, all fields are returned).
	 *
	 * @return  array  Multidimensional array of results
	 *
	 * @since   12.1
	 */
	public function search(array $filters, $dnoverride = null, array $attributes = array())
	{
		$result = array();

		if ($dnoverride)
		{
			$dn = $dnoverride;
		}
		else
		{
			$dn = $this->base_dn;
		}

		$resource = $this->_resource;

		foreach ($filters as $search_filter)
		{
			$search_result = @ldap_search($resource, $dn, $search_filter, $attributes);

			if ($search_result && ($count = @ldap_count_entries($resource, $search_result)) > 0)
			{
				for ($i = 0; $i < $count; $i++)
				{
					$result[$i] = array();

					if (!$i)
					{
						$firstentry = @ldap_first_entry($resource, $search_result);
					}
					else
					{
						$firstentry = @ldap_next_entry($resource, $firstentry);
					}

					// Load user-specified attributes
					$result_array = @ldap_get_attributes($resource, $firstentry);

					// LDAP returns an array of arrays, fit this into attributes result array
					foreach ($result_array as $ki => $ai)
					{
						if (is_array($ai))
						{
							$subcount = $ai['count'];
							$result[$i][$ki] = array();

							for ($k = 0; $k < $subcount; $k++)
							{
								$result[$i][$ki][$k] = $ai[$k];
							}
						}
					}

					$result[$i]['dn'] = @ldap_get_dn($resource, $firstentry);
				}
			}
		}

		return $result;
	}

	/**
	 * Replace an entry and return a true or false result
	 *
	 * @param   string  $dn         The DN which contains the attribute you want to replace
	 * @param   string  $attribute  The attribute values you want to replace
	 *
	 * @return  mixed  result of comparison (true, false, -1 on error)
	 *
	 * @since   12.1
	 */
	public function replace($dn, $attribute)
	{
		return @ldap_mod_replace($this->_resource, $dn, $attribute);
	}

	/**
	 * Modifies an entry and return a true or false result
	 *
	 * @param   string  $dn         The DN which contains the attribute you want to modify
	 * @param   string  $attribute  The attribute values you want to modify
	 *
	 * @return  mixed  result of comparison (true, false, -1 on error)
	 *
	 * @since   12.1
	 */
	public function modify($dn, $attribute)
	{
		return @ldap_modify($this->_resource, $dn, $attribute);
	}

	/**
	 * Removes attribute value from given dn and return a true or false result
	 *
	 * @param   string  $dn         The DN which contains the attribute you want to remove
	 * @param   string  $attribute  The attribute values you want to remove
	 *
	 * @return  mixed  result of comparison (true, false, -1 on error)
	 *
	 * @since   12.1
	 */
	public function remove($dn, $attribute)
	{
		$resource = $this->_resource;

		return @ldap_mod_del($resource, $dn, $attribute);
	}

	/**
	 * Compare an entry and return a true or false result
	 *
	 * @param   string  $dn         The DN which contains the attribute you want to compare
	 * @param   string  $attribute  The attribute whose value you want to compare
	 * @param   string  $value      The value you want to check against the LDAP attribute
	 *
	 * @return  mixed  result of comparison (true, false, -1 on error)
	 *
	 * @since   12.1
	 */
	public function compare($dn, $attribute, $value)
	{
		return @ldap_compare($this->_resource, $dn, $attribute, $value);
	}

	/**
	 * Read all or specified attributes of given dn
	 *
	 * @param   string  $dn  The DN of the object you want to read
	 *
	 * @return  mixed  array of attributes or -1 on error
	 *
	 * @since   12.1
	 */
	public function read($dn)
	{
		$base = substr($dn, strpos($dn, ',') + 1);
		$cn = substr($dn, 0, strpos($dn, ','));
		$result = @ldap_read($this->_resource, $base, $cn);

		if ($result)
		{
			return @ldap_get_entries($this->_resource, $result);
		}
		else
		{
			return $result;
		}
	}

	/**
	 * Deletes a given DN from the tree
	 *
	 * @param   string  $dn  The DN of the object you want to delete
	 *
	 * @return  boolean  Result of operation
	 *
	 * @since   12.1
	 */
	public function delete($dn)
	{
		return @ldap_delete($this->_resource, $dn);
	}

	/**
	 * Create a new DN
	 *
	 * @param   string  $dn       The DN where you want to put the object
	 * @param   array   $entries  An array of arrays describing the object to add
	 *
	 * @return  boolean  Result of operation
	 *
	 * @since   12.1
	 */
	public function create($dn, array $entries)
	{
		return @ldap_add($this->_resource, $dn, $entries);
	}

	/**
	 * Add an attribute to the given DN
	 * Note: DN has to exist already
	 *
	 * @param   string  $dn     The DN of the entry to add the attribute
	 * @param   array   $entry  An array of arrays with attributes to add
	 *
	 * @return  boolean   Result of operation
	 *
	 * @since   12.1
	 */
	public function add($dn, array $entry)
	{
		return @ldap_mod_add($this->_resource, $dn, $entry);
	}

	/**
	 * Rename the entry
	 *
	 * @param   string   $dn           The DN of the entry at the moment
	 * @param   string   $newdn        The DN of the entry should be (only cn=newvalue)
	 * @param   string   $newparent    The full DN of the parent (null by default)
	 * @param   boolean  $deleteolddn  Delete the old values (default)
	 *
	 * @return  boolean  Result of operation
	 *
	 * @since   12.1
	 */
	public function rename($dn, $newdn, $newparent, $deleteolddn)
	{
		return @ldap_rename($this->_resource, $dn, $newdn, $newparent, $deleteolddn);
	}

	/**
	 * Returns the error message
	 *
	 * @return  string   error message
	 *
	 * @since   12.1
	 */
	public function getErrorMsg()
	{
		return @ldap_error($this->_resource);
	}

	/**
	 * Converts a dot notation IP address to net address (e.g. for Netware, etc)
	 *
	 * @param   string  $ip  IP Address (e.g. xxx.xxx.xxx.xxx)
	 *
	 * @return  string  Net address
	 *
	 * @since   12.1
	 */
	public static function ipToNetAddress($ip)
	{
		$parts = explode('.', $ip);
		$address = '1#';

		foreach ($parts as $int)
		{
			$tmp = dechex($int);

			if (strlen($tmp) != 2)
			{
				$tmp = '0' . $tmp;
			}

			$address .= '\\' . $tmp;
		}

		return $address;
	}

	/**
	 * Extract readable network address from the LDAP encoded networkAddress attribute.
	 *
	 * Please keep this document block and author attribution in place.
	 *
	 * Novell Docs, see: http://developer.novell.com/ndk/doc/ndslib/schm_enu/data/sdk5624.html#sdk5624
	 * for Address types: http://developer.novell.com/ndk/doc/ndslib/index.html?page=/ndk/doc/ndslib/schm_enu/data/sdk4170.html
	 * LDAP Format, String:
	 * taggedData = uint32String "#" octetstring
	 * byte 0 = uint32String = Address Type: 0= IPX Address; 1 = IP Address
	 * byte 1 = char = "#" - separator
	 * byte 2+ = octetstring - the ordinal value of the address
	 * Note: with eDirectory 8.6.2, the IP address (type 1) returns
	 * correctly, however, an IPX address does not seem to.  eDir 8.7 may correct this.
	 * Enhancement made by Merijn van de Schoot:
	 * If addresstype is 8 (UDP) or 9 (TCP) do some additional parsing like still returning the IP address
	 *
	 * @param   string  $networkaddress  The network address
	 *
	 * @return  array
	 *
	 * @author  Jay Burrell, Systems & Networks, Mississippi State University
	 * @since   12.1
	 */
	public static function LDAPNetAddr($networkaddress)
	{
		$addr = "";
		$addrtype = (int) substr($networkaddress, 0, 1);

		// Throw away bytes 0 and 1 which should be the addrtype and the "#" separator
		$networkaddress = substr($networkaddress, 2);

		if (($addrtype == 8) || ($addrtype = 9))
		{
			// TODO 1.6: If UDP or TCP, (TODO fill addrport and) strip portnumber information from address
			$networkaddress = substr($networkaddress, (strlen($networkaddress) - 4));
		}

		$addrtypes = array(
			'IPX',
			'IP',
			'SDLC',
			'Token Ring',
			'OSI',
			'AppleTalk',
			'NetBEUI',
			'Socket',
			'UDP',
			'TCP',
			'UDP6',
			'TCP6',
			'Reserved (12)',
			'URL',
			'Count');
		$len = strlen($networkaddress);

		if ($len > 0)
		{
			for ($i = 0; $i < $len; $i++)
			{
				$byte = substr($networkaddress, $i, 1);
				$addr .= ord($byte);

				if (($addrtype == 1) || ($addrtype == 8) || ($addrtype = 9))
				{
					// Dot separate IP addresses...
					$addr .= ".";
				}
			}

			if (($addrtype == 1) || ($addrtype == 8) || ($addrtype = 9))
			{
				// Strip last period from end of $addr
				$addr = substr($addr, 0, strlen($addr) - 1);
			}
		}
		else
		{
			$addr .= JText::_('JLIB_CLIENT_ERROR_LDAP_ADDRESS_NOT_AVAILABLE');
		}

		return array('protocol' => $addrtypes[$addrtype], 'address' => $addr);
	}

	/**
	 * Generates a LDAP compatible password
	 *
	 * @param   string  $password  Clear text password to encrypt
	 * @param   string  $type      Type of password hash, either md5 or SHA
	 *
	 * @return  string   Encrypted password
	 *
	 * @since   12.1
	 */
	public static function generatePassword($password, $type = 'md5')
	{
		switch (strtolower($type))
		{
			case 'sha':
				$userpassword = '{SHA}' . base64_encode(pack('H*', sha1($password)));
				break;
			case 'md5':
			default:
				$userpassword = '{MD5}' . base64_encode(pack('H*', md5($password)));
				break;
		}

		return $userpassword;
	}
}

/**
 * Deprecated class placeholder. You should use JClientLdap instead.
 *
 * @since       11.1
 * @deprecated  12.3 (Platform) & 4.0 (CMS)
 */
class JLDAP extends JClientLdap
{
	/**
	 * Constructor
	 *
	 * @param   object  $configObj  An object of configuration variables
	 *
	 * @since   11.1
	 */
	public function __construct($configObj = null)
	{
		JLog::add('JLDAP is deprecated. Use JClientLdap instead.', JLog::WARNING, 'deprecated');
		parent::__construct($configObj);
	}
}

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