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