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             echo 'R_TIME: '.date('c', $time).' L_ACT: '.date('c', $_SESSION['LAST_ACTIVITY']);
  92             exit;
  93             session_unset();
  94             session_destroy();
  95             self::$_instance->user = null;
  96             self::$_instance->is_admin = false;
  97         } else {
  98             $_SESSION['LAST_ACTIVITY'] = $time;
  99         }
 100
 101         return self::$_instance;
 102     }
 103
 104     public function logout() {
 105         $_SESSION = array();
 106         if (ini_get('session.use_cookies')) {
 107             $params = session_get_cookie_params();
 108             setcookie(session_name(), '', time() - 42000,
 109                 $params['path'], $params['domain'],
 110                 $params['secure'], $params['httponly']);
 111         }
 112         session_unset();
 113         session_destroy();
 114         $this->user = null;
 115         $this->is_admin = false;
 116     }
 117
 118     public function isAdmin() {
 119         //file_put_contents('/tmp/login.txt', var_export($this, true));
 120         return $this->is_admin;
 121     }
 122
 123     public function login($user, $pw) {
 124         global $CFG;
 125         $result = false;
 126
 127         unset($_SESSION['user']);
 128         unset($_SESSION['is_admin']);
 129         $this->user = null;
 130         $this->is_admin = false;
 131
 132         $p = explode('@', $user);
 133         if (count($p) != 2) {
 134             $this->loginStatus = 'Bad username';
 135             return false;
 136         }
 137         $domain = $p[1];
 138         $dn = "mail=$user,ou=Users,domainName=$domain,$CFG->ldap_base_dn";
 139         $filter = "(&(objectclass=mailUser)(accountStatus=active)(mail=$user))";
 140         $ds = @ldap_connect($CFG->ldap_dsn);
 141         if ($ds) {
 142             @ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
 143             $r = @ldap_bind($ds, $dn, $pw);
 144             if ($r) {
 145                 $sr = @ldap_search($ds, $CFG->ldap_base_dn, $filter, array('mail','domainglobaladmin'));
 146                 $info = @ldap_get_entries($ds, $sr); // array
 147                 if ($info['count'] > 0) {
 148                     $_SESSION['user'] = $user;
 149                     $this->user = $user;
 150                     $result = true;
 151                     $this->loginStatus = 'OK';
 152                     $admin = 'NO';
 153                     if (isset($info[0]['domainglobaladmin'])) {
 154                         $admin = $info[0]['domainglobaladmin'][0];
 155                         $admin = strtoupper($admin);
 156                     }
 157                     $this->is_admin = ($admin == 'YES') ? true : false;
 158                     $_SESSION['is_admin'] = $this->is_admin;
 159                 } else {
 160                     $this->loginStatus = 'Login failed';
 161                 }
 162             } else {
 163                 $this->loginStatus = ldap_error($ds);
 164             }
 165             @ldap_close($ds);
 166         } else {
 167             $this->loginStatus = 'Connect to LDAP server failed';
 168         }
 169
 170         return $result;
 171     }
 172
 173     public function getLoginStatus() {
 174         return $this->loginStatus;
 175     }
 176
 177     public function isLoggedIn() {
 178         global $CFG;
 179         $loggedIn = false;
 180
 181         if ($this->user) {
 182             $loggedIn = true;
 183         } else if (isset($_SESSION['user'])) {
 184             $this->user = $_SESSION['user'];
 185             $loggedIn = true;
 186         } else {
 187             if ($CFG->auth_method == 'HTTP_AUTH') {
 188                 if (isset($this->server['PHP_AUTH_USER'])) {
 189                     $this->user = $this->server['PHP_AUTH_USER'];
 190                     $loggedIn = true;
 191                 }
 192             }
 193         }
 194
 195         return $loggedIn;
 196     }
 197
 198     public function getUser() {
 199         $this->isLoggedIn();
 200         return $this->user;
 201     }
 202
 203     public function getHeader() {
 204         return $this->header;
 205     }
 206
 207     public function getFooter() {
 208         return $this->footer;
 209     }
 210
 211     public function getHeading() {
 212         return $this->heading;
 213     }
 214
 215     public function setHeading($heading) {
 216         global $CFG;
 217
 218         $timeout = $CFG->session_timeout * 60 * 1000;
 219         $this->heading = str_replace('__TITLE__', $heading, $this->heading);
 220         $this->header = str_replace('__TITLE__', $heading, $this->header);
 221         $this->header = str_replace('__ROOT__', $CFG->wwwroot, $this->header);
 222         $this->header = str_replace('__TIMEOUT__', $timeout, $this->header);
 223     }
 224
 225     public function convertContent($code) {
 226         $table = array(
 227             'V' => 'Virus',
 228             'B' => 'Banned',
 229             'U' => 'Unchecked',
 230             'S' => 'Spam',
 231             'Y' => 'Spammy',
 232             'M' => 'Bad Mime',
 233             'H' => 'Bad Header',
 234             'O' => 'Over sized',
 235             'T' => 'MTA err',
 236             'C' => 'Clean'
 237         );
 238
 239         $string = $table[$code];
 240         if (empty($string))
 241             $string = 'Unknown';
 242
 243         return $string;
 244     }
 245
 246 }