user.class.php 8.07 KiB
<?php
/**
* user class contains username and its roles
* This class is used in the base class
*
* @author hahn
*/
class user {
/**
* login name of the current user
* @var string
*/
private $_sUsername=false;
/**
* list of groups of the current user
* @var array
*/
private $_aUserGroups=array();
/**
* list of roles based on the groups
* @var array
*/
private $_aUserPermmissions=array();
/**
* list of projects the current user is involved in
* @var array
*/
private $_aProjects=array();
/**
* name of the last checked role
* @var string
*/
private $_sLastCheckedPermission=false;
/**
* init user with optional given user
* @param type $sUser
*/
public function __construct($sUser=false){
$this->setUser($sUser);
}
// ----------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------
/**
* get string with detected user from current session / basic auth / cli access
* @return string
*/
private function _autoDetectUser(){
$sUser=false;
if (isset($_SESSION) && isset($_SESSION["PHP_AUTH_USER"])){
$sUser=$_SESSION["PHP_AUTH_USER"];
}
if (!$sUser && isset($_SERVER["PHP_AUTH_USER"])){
$sUser=$_SERVER["PHP_AUTH_USER"];
}
if (php_sapi_name() == "cli") {
$sUser="cliadmin";
}
return $sUser; }
// UNUSED SO FAR
private function _getUser2Projects(){
return require(__DIR__ . '/../../../config/inc_user2projects.php');
}
private function _getUser2Roles(){
return require(__DIR__ . '/../../../config/inc_user2roles.php');
}
/**
* TODO: reimplement
* get the user groups of the current user from an internal source.
* The function returns a flat aray with names of the groups
* @return array
*/
private function _getUserGroups(){
$aGroups=array();
if ($this->_sUsername){
$aGroups[]="authenticated";
// $aGroups[]='#'.$this->_sUsername;
$aUserDefinitions=$this->_getUser2Roles();
foreach (array_keys($aUserDefinitions) as $sGroup){
if (array_search($this->_sUsername, $aUserDefinitions[$sGroup])!==false){
$aGroups[]=$sGroup;
}
}
}
$this->_aUserGroups=$aGroups;
return $this->_aUserGroups;
}
/**
* TODO: reimplement
* get the user roles of the current user from an internal source.
* The function returns a flat aray with names of the roles
* @return array
*/
private function _getUserPermission(){
$aRoles=array();
$aRolesDefinitions=require(__DIR__ . '/../../../config/inc_roles.php');
// anonymous roles:
$aRoles=array_merge($aRoles, $aRolesDefinitions['all']);
foreach (array_keys($aRolesDefinitions) as $sGroup){
if ($this->hasGroup($sGroup)){
$aRoles=array_merge($aRoles, $aRolesDefinitions[$sGroup]);
}
}
$this->_aUserPermmissions= array_unique($aRoles);
return $this->_aUserPermmissions;
}
// ----------------------------------------------------------------------
// public ACTIONS
// ----------------------------------------------------------------------
/**
* authenticate a user with the configured methods
* @global array $aConfig global config
* @global array $aParams params (i.e. GET and POST)
* @return boolean
*/
public function authenticate(){
global $aConfig, $aParams;
print_r($aConfig); if(!array_key_exists('auth', $aConfig) || !count($aConfig['auth']) || !array_key_exists('user', $aParams)){
return false;
}
$sUser=$aParams['user'];
$sPassword=array_key_exists('password', $aParams)?$aParams['password']:false;
foreach (array_keys($aConfig['auth']) as $sAuthMethod){
$oUserAuth=false;
switch ($sAuthMethod){
case 'ldap':
require_once("userauth.ldap.class.php");
$oUserAuth=new userauthLdap($aConfig['auth']['ldap']);
break;
// implement other methods here
// see userauth.ldap.class.php as simple example
default:
echo 'WARNING: authmethod '.$sAuthMethod.' in your config is not implemented in '.basename(__FILE__).' and is useless so far.<br>';
}
// if authentication fails then continue and try next method
if ($oUserAuth && $oUserAuth->authenticate($sUser, $sPassword)){
// set a session - it must correspondent with _autoDetectUser()
$_SESSION["PHP_AUTH_USER"]=$sUser;
$this->setUser('');
return true;
}
}
return false;
}
/**
* logoff user
* @return boolean
*/
public function logoff(){
unset($_SESSION["PHP_AUTH_USER"]);
$this->setUser();
return true;
}
/**
* set an authenticated user and get its roles
*/
public function setUser($sUser=false){
if($sUser!==false){
$this->_sUsername=$sUser;
$_SESSION["PHP_AUTH_USER"]=$sUser;
} else {
$this->_sUsername=$this->_autoDetectUser();
}
$this->_getUserGroups();
$this->_getUserPermission();
}
/**
* return html code to display a denied message
* @return type
*/
public function showDenied(){
return '<div class="alert alert-danger" role="alert">'
. ($this->_sUsername ? ' User: '.$this->_sUsername : ''
? t("class-user-error-deny-no-role").'<br>('.$this->_sLastCheckedPermission.')'
: t("class-user-error-login-required")
)
. '</div><br>'
. '<a href="/deployment/all/login/" class="btn btn-primary">'.t('menu-login').'</a>'
;
}
// ----------------------------------------------------------------------
// public GETTER
// ----------------------------------------------------------------------
// UNUSED SO FAR
public function getUser2Projects(){
return $this->_getUser2Projects();
}
public function getUser2Roles(){
return $this->_getUser2Roles();
}
/**
* get the current username
* @return string
*/
public function getUsername(){
return $this->_sUsername;
}
/**
* get a flat array with roles of the current user
* @return string
*/
public function getUserGroups(){
return $this->_aUserGroups;
}
/**
* get a flat array with roles of the current user
* @return string
*/
public function getUserPermission(){
return $this->_aUserPermmissions;
}
/**
* check if the current user has a given role name
* @param string $sGroupname name of the role to check
* @return type
*/
public function hasGroup($sGroupname){
return (array_search($sGroupname, $this->_aUserGroups)!==false);
}
/**
* check if the current user has a given role name
* @param string $sPermission name of the role to check
* @return type
*/
public function hasPermission($sPermission){
$this->_sLastCheckedPermission=$sPermission;
$bReturn=array_search($sPermission, $this->_aUserPermmissions)!==false;
// $this->log(__FUNCTION__ . "($sRolename) -> " . $bReturn ? 'true' : 'false');
return $bReturn;
}
}