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 implements Serializable {
   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         $_SESSION['Utils'] = serialize($this);
  59     }
  60
  61     private function __clone() {}
  62
  63     public function serialize() {
  64         file_put_contents('/tmp/dump', 'Serialize called: '.var_export($this, true), FILE_APPEND);
  65         return serialize(get_object_vars($this));
  66     }
  67
  68     public function unserialize($data) {
  69         $values = unserialize($data);
  70         foreach ($values as $key=>$value) {
  71             $this->$key = $value;
  72         }
  73     }
  74
  75     private function startSession() {
  76         global $CFG;
  77
  78         if (isset($CFG->session_timeout)) {
  79             $this->timeout = $CFG->session_timeout * 60;
  80         } else {
  81             $this->timeout = 20 * 60;
  82         }
  83
  84         if (ini_get('session.gc_maxlifetime') != $this->timeout)
  85             ini_set('session.gc_maxlifetime', $this->timeout);
  86         if (ini_get('session.cookie_lifetime') != $this->timeout)
  87             ini_set('session.cookie_lifetime', $this->timeout);
  88
  89         session_start();
  90
  91         //echo ini_get('session.gc_maxlifetime').':'.ini_get('session.cookie_lifetime');
  92     }
  93
  94     public static function getInstance() {
  95         global $CFG;
  96
  97         if (!is_object(self::$_instance)) {
  98             if (isset($_SESSION['Utils'])) {
  99                 self::$_instance = unserialize($_SESSION['Utils']);
 100                 file_put_contents('/tmp/dump', 'Unserialize called: '.var_export($this, true), FILE_APPEND);
 101             } else {
 102                 self::$_instance = new Utils();
 103             }
 104         }
 105
 106         $time = $_SERVER['REQUEST_TIME'];
 107         if (isset($_SESSION['LAST_ACTIVITY']) &&
 108                 ($time - $_SESSION['LAST_ACTIVITY']) >= self::$_instance->timeout) {
 109             echo 'R_TIME: '.date('c', $time).' L_ACT: '.date('c', $_SESSION['LAST_ACTIVITY']);
 110             exit;
 111             session_unset();
 112             session_destroy();
 113             self::$_instance = null;
 114             self::$_instance->is_admin = false;
 115             $_SESSION['Utils'] = serialize(self::$_instance);
 116         } else {
 117             $_SESSION['LAST_ACTIVITY'] = $time;
 118         }
 119
 120         return self::$_instance;
 121     }
 122
 123     public function logout() {
 124         $_SESSION = array();
 125         if (ini_get('session.use_cookies')) {
 126             $params = session_get_cookie_params();
 127             setcookie(session_name(), '', time() - 42000,
 128                 $params['path'], $params['domain'],
 129                 $params['secure'], $params['httponly']);
 130         }
 131         session_unset();
 132         session_destroy();
 133         $this->user = null;
 134         $this->is_admin = false;
 135     }
 136
 137     public function isAdmin() {
 138         //file_put_contents('/tmp/login.txt', var_export($this, true));
 139         return $this->is_admin;
 140     }
 141
 142     public function login($user, $pw) {
 143         global $CFG;
 144         $result = false;
 145
 146         unset($_SESSION['user']);
 147         unset($_SESSION['is_admin']);
 148         $this->user = null;
 149         $this->is_admin = false;
 150
 151         $p = explode('@', $user);
 152         if (count($p) != 2) {
 153             $this->loginStatus = 'Bad username';
 154             return false;
 155         }
 156         $domain = $p[1];
 157         $dn = "mail=$user,ou=Users,domainName=$domain,$CFG->ldap_base_dn";
 158         $filter = "(&(objectclass=mailUser)(accountStatus=active)(mail=$user))";
 159         $ds = @ldap_connect($CFG->ldap_dsn);
 160         if ($ds) {
 161             @ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
 162             $r = @ldap_bind($ds, $dn, $pw);
 163             if ($r) {
 164                 $sr = @ldap_search($ds, $CFG->ldap_base_dn, $filter, array('mail','domainglobaladmin'));
 165                 $info = @ldap_get_entries($ds, $sr); // array
 166                 if ($info['count'] > 0) {
 167                     $_SESSION['user'] = $user;
 168                     $this->user = $user;
 169                     $result = true;
 170                     $this->loginStatus = 'OK';
 171                     $admin = 'NO';
 172                     if (isset($info[0]['domainglobaladmin'])) {
 173                         $admin = $info[0]['domainglobaladmin'][0];
 174                         $admin = strtoupper($admin);
 175                     }
 176                     $this->is_admin = ($admin == 'YES') ? true : false;
 177                     $_SESSION['is_admin'] = $this->is_admin;
 178                 } else {
 179                     $this->loginStatus = 'Login failed';
 180                 }
 181             } else {
 182                 $this->loginStatus = ldap_error($ds);
 183             }
 184             @ldap_close($ds);
 185         } else {
 186             $this->loginStatus = 'Connect to LDAP server failed';
 187         }
 188
 189         $_SESSION['Utils'] = serialize($this);
 190
 191         return $result;
 192     }
 193
 194     public function getLoginStatus() {
 195         return $this->loginStatus;
 196     }
 197
 198     public function isLoggedIn() {
 199         global $CFG;
 200         $loggedIn = false;
 201
 202         if ($this->user) {
 203             $loggedIn = true;
 204         } else if (isset($_SESSION['user'])) {
 205             $this->user = $_SESSION['user'];
 206             $loggedIn = true;
 207         } else {
 208             if ($CFG->auth_method == 'HTTP_AUTH') {
 209                 if (isset($this->server['PHP_AUTH_USER'])) {
 210                     $this->user = $this->server['PHP_AUTH_USER'];
 211                     $loggedIn = true;
 212                 }
 213             }
 214         }
 215
 216         if ($loggedIn == false) {
 217             echo '$this->user: '.$this->user.' $_SESSION[\'user\']: '.$_SESSION['user'];
 218             echo 'R_TIME: '.date('c', $_SERVER['REQUEST_TIME']).' L_ACT: '.date('c', $_SESSION['LAST_ACTIVITY']);
 219             exit;
 220         }
 221
 222         $_SESSION['Utils'] = serialize($this);
 223
 224         return $loggedIn;
 225     }
 226
 227     public function getUser() {
 228         $this->isLoggedIn();
 229         return $this->user;
 230     }
 231
 232     public function getHeader() {
 233         return $this->header;
 234     }
 235
 236     public function getFooter() {
 237         return $this->footer;
 238     }
 239
 240     public function getHeading() {
 241         return $this->heading;
 242     }
 243
 244     public function setHeading($heading) {
 245         global $CFG;
 246
 247         $timeout = $CFG->session_timeout * 60 * 1000;
 248         $this->heading = str_replace('__TITLE__', $heading, $this->heading);
 249         $this->header = str_replace('__TITLE__', $heading, $this->header);
 250         $this->header = str_replace('__ROOT__', $CFG->wwwroot, $this->header);
 251         $this->header = str_replace('__TIMEOUT__', $timeout, $this->header);
 252
 253         $_SESSION['Utils'] = serialize($this);
 254     }
 255
 256     public function convertContent($code) {
 257         $table = array(
 258             'V' => 'Virus',
 259             'B' => 'Banned',
 260             'U' => 'Unchecked',
 261             'S' => 'Spam',
 262             'Y' => 'Spammy',
 263             'M' => 'Bad Mime',
 264             'H' => 'Bad Header',
 265             'O' => 'Over sized',
 266             'T' => 'MTA err',
 267             'C' => 'Clean'
 268         );
 269
 270         $string = $table[$code];
 271         if (empty($string))
 272             $string = 'Unknown';
 273
 274         return $string;
 275     }
 276
 277 }