<?php
/*
$Id: hostObject.inc 5352 2014-04-20 13:00:42Z gruberroland $

  This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
  Copyright (C) 2011 - 2012  Roland Gruber

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

/**
* Manages the hosts to which a user may login.
*
* @package modules
* @author Roland Gruber
*/

/**
* Manages the hosts to which a user may login.
*
* @package modules
*/
class hostObject extends baseModule {
	
	/**
	* Creates a new hostObject object.
	*
	* @param string $scope account type (user, group, host)
	*/
	function __construct($scope) {
		// call parent constructor
		parent::__construct($scope);
		$this->autoAddObjectClasses = false;
	}

	/**
	* Returns true if this module can manage accounts of the current type, otherwise false.
	* 
	* @return boolean true if module fits
	*/
	public function can_manage() {
		return in_array($this->get_scope(), array('user'));
	}

	/**
	* Returns meta data that is interpreted by parent class
	*
	* @return array array with meta data
	* 
	* @see baseModule::get_metaData()
	*/
	function get_metaData() {
		$return = array();
		// icon
		$return['icon'] = 'computer.png';
		// alias name
		$return["alias"] = _("Hosts");
		// module dependencies
		$return['dependencies'] = array('depends' => array(), 'conflicts' => array());
		// managed object classes
		$return['objectClasses'] = array('hostObject');
		// managed attributes
		$return['attributes'] = array('host');
		// help Entries
		$return['help'] = array(
			'host' => array(
				"Headline" => _("Hosts"), 'attr' => 'host',
				"Text" => _("Here you can specify the list of host names where this account has login privileges. The wildcard \"*\" represents all hosts. You may also use \"!\" in front of a host name to deny access to a host.")
			),
			'autoAdd' => array(
				"Headline" => _("Automatically add this extension"),
				"Text" => _("This will enable the extension automatically if this profile is loaded.")
			)
		);
		// upload fields
		$return['upload_columns'] = array(
			array(
				'name' => 'hostObject_hosts',
				'description' => _('Host list'),
				'help' => 'host',
				'example' => _('pc01,pc02')
			)
		);
		// available PDF fields
		$return['PDF_fields'] = array(
			'hosts' => _('Host list')
		);
		$profileContainer = new htmlTable();
		$profileContainer->addElement(new htmlTableExtendedInputCheckbox('hostObject_addExt', false, _('Automatically add this extension'), 'autoAdd'));
		$return['profile_options'] = $profileContainer;
		return $return;
	}

	/**
	* This function fills the error message array with messages
	*/
	function load_Messages() {
		$this->messages['host'][0] = array('ERROR', 'Please enter a valid host name.');  // third array value is set dynamically
		$this->messages['host'][1] = array('ERROR', _('Account %s:') . ' hostObject_host', _('Please enter a valid list of host names.'));
	}

	/**
	* Returns a list of modifications which have to be made to the LDAP account.
	*
	* @return array list of modifications
	* <br>This function returns an array with 3 entries:
	* <br>array( DN1 ('add' => array($attr), 'remove' => array($attr), 'modify' => array($attr)), DN2 .... )
	* <br>DN is the DN to change. It may be possible to change several DNs (e.g. create a new user and add him to some groups via attribute memberUid)
	* <br>"add" are attributes which have to be added to LDAP entry
	* <br>"remove" are attributes which have to be removed from LDAP entry
	* <br>"modify" are attributes which have to been modified in LDAP entry
	* <br>"info" are values with informational value (e.g. to be used later by pre/postModify actions)
	*/
	function save_attributes() {
		if (!in_array('hostObject', $this->attributes['objectClass']) && !in_array('hostObject', $this->orig['objectClass'])) {
			// skip saving if the extension was not added/modified
			return array();
		}
		return parent::save_attributes();
	}
	
	/**
	 * Returns the HTML meta data for the main account page.
	 * 
	 * @return htmlElement HTML meta data
	 */
	function display_html_attributes() {
		if (isset($_POST['addObjectClass'])) {
			$this->attributes['objectClass'][] = 'hostObject';
		}
		$return = new htmlTable();
		if (in_array('hostObject', $this->attributes['objectClass'])) {
			$this->addMultiValueInputTextField($return, 'host', _('Host'));
			$return->addElement(new htmlSpacer(null, '10px'), true);
			$remButton = new htmlButton('remObjectClass', _('Remove host extension'));
			$remButton->colspan = 4;
			$return->addElement($remButton);
		}
		else {
			$return->addElement(new htmlButton('addObjectClass', _('Add host extension')));
		}
		return $return;
	}

	/**
	* Processes user input of the primary module page.
	* It checks if all input values are correct and updates the associated LDAP attributes.
	*
	* @return array list of info/error messages
	*/
	function process_attributes() {
		if (isset($_POST['remObjectClass'])) {
			$this->attributes['objectClass'] = array_delete(array('hostObject'), $this->attributes['objectClass']);
			if (isset($this->attributes['host'])) unset($this->attributes['host']);
			return array();
		}
		if (!in_array('hostObject', $this->attributes['objectClass'])) {
			return array();
		}
		$errors = array();
		$this->processMultiValueInputTextField('host', $errors, 'hostObject');
		return $errors;
	}

	/**
	* In this function the LDAP account is built up.
	*
	* @param array $rawAccounts list of hash arrays (name => value) from user input
	* @param array $ids list of IDs for column position (e.g. "posixAccount_uid" => 5)
	* @param array $partialAccounts list of hash arrays (name => value) which are later added to LDAP
	* @param array $selectedModules list of selected account modules
	* @return array list of error messages if any
	*/
	function build_uploadAccounts($rawAccounts, $ids, &$partialAccounts, $selectedModules) {
		$messages = array();
		for ($i = 0; $i < sizeof($rawAccounts); $i++) {
			// add object class
			if (!in_array("hostObject", $partialAccounts[$i]['objectClass'])) $partialAccounts[$i]['objectClass'][] = "hostObject";
			// add hosts
			if ($rawAccounts[$i][$ids['hostObject_hosts']] != "") {
				$hosts = explode(',', $rawAccounts[$i][$ids['hostObject_hosts']]);
				// check format
				for ($a = 0; $a < sizeof($hosts); $a++) {
					if (get_preg($hosts[$a], 'hostObject')) {
						$partialAccounts[$i]['host'][] = $hosts[$a];
					}
					else {
						$errMsg = $this->messages['host'][1];
						array_push($errMsg, array($i));
						$messages[] = $errMsg;
					}
				}
			}
		}
		return $messages;
	}

	/**
	* Returns the PDF entries for this module.
	*
	* @return array list of possible PDF entries
	*/
	function get_pdfEntries() {
		$return = array();
		$this->addSimplePDFField($return, 'hosts', _('Host list'), 'host');
		return $return;
	}

	/**
	* Loads the values of an account profile into internal variables.
	*
	* @param array $profile hash array with profile values (identifier => value)
	*/
	function load_profile($profile) {
		// profile mappings in meta data
		parent::load_profile($profile);
		// add extension
		if (isset($profile['hostObject_addExt'][0]) && ($profile['hostObject_addExt'][0] == "true")) {
			if (!in_array('hostObject', $this->attributes['objectClass'])) {
				$this->attributes['objectClass'][] = 'hostObject';
			}
		}
	}

}


?>
