<?PHP
/*
$Id: selfService.inc,v 1.20 2010/08/31 18:05:17 gruberroland Exp $

  This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
  Copyright (C) 2006  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


*/

/**
* Interface between modules and self service pages.
* This file also includes the self service profile class and helper functions.
*
* @package selfService
* @author Roland Gruber
*/

/** modules */
include_once("modules.inc");
/** account types */
include_once("types.inc");

/**
 * Returns if this is a LAM Pro installation.
 *
 * @return boolean LAM Pro installation
 */
function isLAMProVersion() {
	$dir = substr(__FILE__, 0, strlen(__FILE__) - 20) . "/templates/selfService";
	return is_dir($dir);
}


/**
 * Returns a list of possible search attributes for the self service.
 *
 * @param string $scope account type
 * @return array attributes
 */
function getSelfServiceSearchAttributes($scope) {
	$return = array();
	$modules = getAvailableModules($scope);
	for ($i = 0; $i < sizeof($modules); $i++) {
		$m = new $modules[$i]($scope);
		$attributes = $m->getSelfServiceSearchAttributes();
		$return = array_merge($return, $attributes);
	}
	$return = array_unique($return);
	$return = array_values($return);
	return $return;
}


/**
 * Returns the field settings for the self service.
 *
 * @param string $scope account type
 * @return array settings
 */
function getSelfServiceFieldSettings($scope) {
	$return = array();
	$modules = getAvailableModules($scope);
	for ($i = 0; $i < sizeof($modules); $i++) {
		$m = new $modules[$i]($scope);
		$settings = $m->getSelfServiceFields();
		if (sizeof($settings) > 0) $return[$modules[$i]] = $settings;
	}
	return $return;
}


/**
 * Returns meta HTML code for each self service field.
 *
 * @param string $scope account type
 * @param array $fields input fields (array(<moduleName> => array(<field1>, <field2>, ...)))
 * @param array $attributes LDAP attributes (attribute names in lower case)
 * @return array meta HTML code (array(<moduleName> => htmlTableRow))
 */
function getSelfServiceOptions($scope, $fields, $attributes) {
	$return = array();
	$modules = getAvailableModules($scope);
	for ($i = 0; $i < sizeof($modules); $i++) {
		if (!isset($fields[$modules[$i]])) continue;
		$m = new $modules[$i]($scope);
		$code = $m->getSelfServiceOptions($fields[$modules[$i]], $attributes);
		if (sizeof($code) > 0) $return[$modules[$i]] = $code;
	}
	return $return;
}


/**
 * Checks if all input values are correct and returns the LDAP commands which should be executed.
 *
 * @param string $scope account type
 * @param string $fields input fields (array(<moduleName> => array(<field1>, <field2>, ...)))
 * @param array $attributes LDAP attributes
 * @return array messages and LDAP commands (array('messages' => array(), 'add' => array(), 'del' => array(), 'mod' => array()))
 */
function checkSelfServiceOptions($scope, $fields, $attributes) {
	$return = array('messages' => array(), 'add' => array(), 'del' => array(), 'mod' => array());
	$modules = getAvailableModules($scope);
	for ($i = 0; $i < sizeof($modules); $i++) {
		if (!isset($fields[$modules[$i]])) continue;
		$m = new $modules[$i]($scope);
		$result = $m->checkSelfServiceOptions($fields[$modules[$i]], $attributes);
		if (sizeof($result['messages']) > 0) $return['messages'] = array_merge($result['messages'], $return['messages']);
		if (sizeof($result['add']) > 0) $return['add'] = array_merge($result['add'], $return['add']);
		if (sizeof($result['del']) > 0) $return['del'] = array_merge($result['del'], $return['del']);
		if (sizeof($result['mod']) > 0) $return['mod'] = array_merge($result['mod'], $return['mod']);
	}
	return $return;
}


/**
* Returns a list of all available self service profiles (without .conf)
*
* @return array profile names (array(<account type> => array(<profile1>, <profile2>, ...)))
*/
function getSelfServiceProfiles() {
	$types = getTypes();
	$dir = dir(substr(__FILE__, 0, strlen(__FILE__) - 20) . "/config/selfService");
	$ret = array();
	while ($entry = $dir->read()){
		$ext = substr($entry, strrpos($entry, '.') + 1);
		$name = substr($entry, 0, strrpos($entry, '.'));
		// check if extension is right, add to profile list
		if (in_array($ext, $types)) {
			$ret[$ext][] = $name;
		}
	}
	ksort($ret);
	return $ret;
}


/**
* Loads all settings of a self service profile.
*
* @param string $name profile name
* @param string $scope account type
* @return selfServiceProfile true if file was readable
*/
function loadSelfServiceProfile($name, $scope) {
	if (!preg_match("/^[0-9a-z _-]+$/i", $name)) return false;
	if (!preg_match("/^[0-9a-z _-]+$/i", $scope)) return false;
	$profile = new selfServiceProfile();
	$file = substr(__FILE__, 0, strlen(__FILE__) - 20) . "/config/selfService/" . $name . "." . $scope;
	if (is_file($file) === True) {
		$file = @fopen($file, "r");
		if ($file) {
			$data = fread($file, 10000);
			$profile = unserialize($data);
			fclose($file);
		}
		else {
			StatusMessage("ERROR", "", _("Unable to load profile!") . " " . $file);
		}
	}
	else {
		StatusMessage("ERROR", "", _("Unable to load profile!") . " " . $file);
	}
	return $profile;
}


/**
* Saves a self service profile.
*
* File is created, if needed
*
* @param string $name name of the account profile
* @param string $scope account type
* @param selfServiceProfile $profile self service profile
* @return boolean true, if saving succeeded
*/
function saveSelfServiceProfile($name, $scope, $profile) {
	// check profile name
	if (!preg_match("/^[0-9a-z _-]+$/i", $scope)) return false;
	if (!preg_match("/^[0-9a-z _-]+$/i", $name)) return false;
	if (!get_class($profile) === 'selfServiceProfile') {
		return false;
	}
	$path = substr(__FILE__, 0, strlen(__FILE__) - 20) . "/config/selfService/" . $name . "." . $scope;
	$file = @fopen($path, "w");
	if ($file) {
	  	// write settings to file
		fputs($file, serialize($profile));
		// close file
		fclose($file);
	}
	else {
		return false;
	}
	return true;
}

/**
* Returns a hash array (module name => elements) of all module options for the configuration page.
*
* @param string $scope account type
* @return array configuration options
*/
function getSelfServiceSettings($scope) {
	$return = array();
	$modules = getAvailableModules($scope);
	for ($i = 0; $i < sizeof($modules); $i++) {
		$m = new $modules[$i]($scope);
		$return[$modules[$i]] = $m->getSelfServiceSettings();
	}
	return $return;
}

/**
* Checks if the self service settings are valid
*
* @param string $scope account type
* @param array $options hash array containing all options (name => array(...))
* @return array list of error messages
*/
function checkSelfServiceSettings($scope, $options) {
	$return = array();
	$modules = getAvailableModules($scope);
	for ($i = 0; $i < sizeof($modules); $i++) {
		$m = new $modules[$i]($scope);
		$errors = $m->checkSelfServiceSettings($options);
		$return = array_merge($return, $errors);
	}
	return $return;
}


/**
 * Includes all settings of a self service profile.
 *
 * @package selfService
 */
class selfServiceProfile {

	/** server address */
	public $serverURL;

	/** LDAP suffix */
	public $LDAPSuffix;

	/** LDAP user DN*/
	public $LDAPUser;

	/** LDAP password */
	public $LDAPPassword;

	/** LDAP search attribute */
	public $searchAttribute;
	
	/** header for self service pages */
	public $pageHeader;
	
	/** list of additional CSS links (separated by \n) */
	public $additionalCSS;

	/** describing text for user login */
	public $loginCaption;

	/** describing text for search attribute */
	public $loginAttributeText;

	/** describing text for self service main page */
	public $mainPageText;

	/** input fields
	 * Format: array(<module> => array(array('name' => <group name>, 'fields' => array(<field1>, <field2>))))
	 *
	 */
	public $inputFields;
	
	/** configuration settings of modules */
	public $moduleSettings;

	/**
	 * Constructor
	 *
	 * @return selfServiceProfile
	 */
	function __construct() {
		// set default values
		$this->serverURL = "localhost";
		$this->LDAPSuffix = "dc=my-domain,dc=com";
		$this->LDAPUser = "";
		$this->LDAPPassword = "";
		$this->searchAttribute = "uid";
		$this->pageHeader = '<table border=0 width="100%" class="lamHeader ui-corner-all"><tr><td align="left" height="30"><a class="lamHeader" href="http://www.ldap-account-manager.org/" target="new_window">&nbsp;<img src="../../graphics/logo32.png" width=24 height=24 class="align-middle" alt="LDAP Account Manager">&nbsp;&nbsp;LDAP Account Manager</a></td></tr></table><br>';
		$this->additionalCSS = '';
		$this->loginCaption = "Welcome to LAM self service. Please enter your user name and password.";
		$this->loginAttributeText = "User name";
		$this->mainPageText = "<h1>LAM self service</h1>\nHere you can change your personal settings.";
		$this->inputFields = array(
			array('name' => 'Personal data',
				'fields' => array('inetOrgPerson_firstName', 'inetOrgPerson_lastName', 'inetOrgPerson_mail',
					'inetOrgPerson_telephoneNumber', 'inetOrgPerson_mobile', 'inetOrgPerson_faxNumber',
					'inetOrgPerson_street', 'inetOrgPerson_postalAddress')),
			array('name' => 'Password',
				'fields' => array('posixAccount_password'))
		);
	}

}

?>