lib/utils.inc.php

   1 <?php
   2 /* vim: set ts=4 tw=0 sw=4 noet: */
   3 require_once $CFG->root .'config.php';
   4
   5 class Utils {
   6
   7     private static $_instance = null;
   8     private $server;
   9     private $user;
  10     private $is_admin;
  11     private $loginStatus;
  12     private $timeout;
  13     private $header = '<!DOCTYPE html>
  14 <html>
  15 <head>
  16     <meta charset="utf-8">
  17     <link rel="stylesheet" href="css/styles.css">
  18     <script>
  19         var timeout = __TIMEOUT__;
  20     </script>
  21     <script src="__ROOT__js/timer.js"></script>
  22     <script src="__ROOT__js/checkbox.js"></script>
  23     <title>__TITLE__</title>
  24 </head>
  25 <body>';
  26     private $footer = '<p class="footer">Powered by <a href="https://qtadmin.datanom.net"
  27             title="Goto QtAdmin homepage">QtAdmin</a>. &copy; 2015 by Michael Rasmussen</p></body></html>';
  28     private $heading = '<p id="time" class="time">Session timeout:
  29             <span id="timer"></span></p><h1 class="h1">__TITLE__</h1>';
  30
  31     private function __construct() {
  32         global $CFG;
  33
  34         $this->server = $_SERVER;
  35
  36         $this->user = null;
  37         $this->is_admin = false;
  38         $this->loginStatus = 'Not logged in';
  39
  40         $this->startSession();
  41
  42         if (isset($_SESSION['user'])) {
  43             $this->user = $_SESSION['user'];
  44             $this->loginStatus = 'OK';
  45             $this->is_admin = $_SESSION['is_admin'];
  46         } else {
  47             if ($CFG->auth_method == 'HTTP_AUTH') {
  48                 if (isset($this->server['PHP_AUTH_USER'])) {
  49                     $this->user = $this->server['PHP_AUTH_USER'];
  50                     $this->loginStatus = 'OK';
  51                     if ($CFG->admin_user == $this->user)
  52                         $this->is_admin = true;
  53                 }
  54             }
  55         }
  56         $_SESSION['user'] = $this->user;
  57         $_SESSION['is_admin'] = $this->is_admin;
  58     }
  59
  60     private function __clone() {}
  61
  62     private function startSession() {
  63         global $CFG;
  64
  65         if (isset($CFG->session_timeout)) {
  66             $this->timeout = $CFG->session_timeout * 60;
  67         } else {
  68             $this->timeout = 20 * 60;
  69         }
  70
  71         if (ini_get('session.gc_maxlifetime') != $this->timeout)
  72             ini_set('session.gc_maxlifetime', $this->timeout);
  73         if (ini_get('session.cookie_lifetime') != $this->timeout)
  74             ini_set('session.cookie_lifetime', $this->timeout);
  75
  76         session_start();
  77
  78         //echo ini_get('session.gc_maxlifetime').':'.ini_get('session.cookie_lifetime');
  79     }
  80
  81     public static function getInstance() {
  82         global $CFG;
  83
  84         if (!is_object(self::$_instance)) {
  85             self::$_instance = new Utils();
  86         }
  87
  88         $time = $_SERVER['REQUEST_TIME'];
  89         if (isset($_SESSION['LAST_ACTIVITY']) &&
  90                 ($time - $_SESSION['LAST_ACTIVITY']) >= self::$_instance->timeout) {
  91             session_unset();
  92             session_destroy();
  93             self::$_instance->user = null;
  94             self::$_instance->is_admin = false;
  95         } else {
  96             $_SESSION['LAST_ACTIVITY'] = $time;
  97         }
  98
  99         return self::$_instance;
 100     }
 101
 102     public function logout() {
 103         $_SESSION = array();
 104         if (ini_get('session.use_cookies')) {
 105             $params = session_get_cookie_params();
 106             setcookie(session_name(), '', time() - 42000,
 107                 $params['path'], $params['domain'],
 108                 $params['secure'], $params['httponly']);
 109         }
 110         session_unset();
 111         session_destroy();
 112         $this->user = null;
 113         $this->is_admin = false;
 114     }
 115
 116     public function isAdmin() {
 117         //file_put_contents('/tmp/login.txt', var_export($this, true));
 118         return $this->is_admin;
 119     }
 120
 121     public function login($user, $pw) {
 122         global $CFG;
 123         $result = false;
 124
 125         unset($_SESSION['user']);
 126         unset($_SESSION['is_admin']);
 127         $this->user = null;
 128         $this->is_admin = false;
 129
 130         $p = explode('@', $user);
 131         if (count($p) != 2) {
 132             $this->loginStatus = 'Bad username';
 133             return false;
 134         }
 135         $domain = $p[1];
 136         $dn = "mail=$user,ou=Users,domainName=$domain,$CFG->ldap_base_dn";
 137         $filter = "(&(objectclass=mailUser)(accountStatus=active)(mail=$user))";
 138         $ds = @ldap_connect($CFG->ldap_dsn);
 139         if ($ds) {
 140             @ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
 141             $r = @ldap_bind($ds, $dn, $pw);
 142             if ($r) {
 143                 $sr = @ldap_search($ds, $CFG->ldap_base_dn, $filter, array('mail','domainglobaladmin'));
 144                 $info = @ldap_get_entries($ds, $sr); // array
 145                 if ($info['count'] > 0) {
 146                     $_SESSION['user'] = $user;
 147                     $this->user = $user;
 148                     $result = true;
 149                     $this->loginStatus = 'OK';
 150                     $admin = 'NO';
 151                     if (isset($info[0]['domainglobaladmin'])) {
 152                         $admin = $info[0]['domainglobaladmin'][0];
 153                         $admin = strtoupper($admin);
 154                     }
 155                     $this->is_admin = ($admin == 'YES') ? true : false;
 156                     $_SESSION['is_admin'] = $this->is_admin;
 157                 } else {
 158                     $this->loginStatus = 'Login failed';
 159                 }
 160             } else {
 161                 $this->loginStatus = ldap_error($ds);
 162             }
 163             @ldap_close($ds);
 164         } else {
 165             $this->loginStatus = 'Connect to LDAP server failed';
 166         }
 167
 168         return $result;
 169     }
 170
 171     public function getLoginStatus() {
 172         return $this->loginStatus;
 173     }
 174
 175     public function isLoggedIn() {
 176         global $CFG;
 177         $loggedIn = false;
 178
 179         if ($this->user) {
 180             $loggedIn = true;
 181         } else if (isset($_SESSION['user'])) {
 182             $this->user = $_SESSION['user'];
 183             $loggedIn = true;
 184         } else {
 185             if ($CFG->auth_method == 'HTTP_AUTH') {
 186                 if (isset($this->server['PHP_AUTH_USER'])) {
 187                     $this->user = $this->server['PHP_AUTH_USER'];
 188                     $loggedIn = true;
 189                 }
 190             }
 191         }
 192
 193         return $loggedIn;
 194     }
 195
 196     public function getUser() {
 197         $this->isLoggedIn();
 198         return $this->user;
 199     }
 200
 201     public function getHeader() {
 202         return $this->header;
 203     }
 204
 205     public function getFooter() {
 206         return $this->footer;
 207     }
 208
 209     public function getHeading() {
 210         return $this->heading;
 211     }
 212
 213     public function setHeading($heading) {
 214         global $CFG;
 215
 216         $timeout = $CFG->session_timeout * 60 * 1000;
 217         $this->heading = str_replace('__TITLE__', $heading, $this->heading);
 218         $this->header = str_replace('__TITLE__', $heading, $this->header);
 219         $this->header = str_replace('__ROOT__', $CFG->wwwroot, $this->header);
 220         $this->header = str_replace('__TIMEOUT__', $timeout, $this->header);
 221     }
 222
 223     public function convertContent($code) {
 224         $table = array(
 225             'V' => 'Virus',
 226             'B' => 'Banned',
 227             'U' => 'Unchecked',
 228             'S' => 'Spam',
 229             'Y' => 'Spammy',
 230             'M' => 'Bad Mime',
 231             'H' => 'Bad Header',
 232             'O' => 'Over sized',
 233             'T' => 'MTA err',
 234             'C' => 'Clean'
 235         );
 236
 237         $string = $table[$code];
 238         if (empty($string))
 239             $string = 'Unknown';
 240
 241         return $string;
 242     }
 243
 244 }