lib/utils.inc.php

   1 <?php
   2 /* vim: set ts=4 tw=0 sw=4 noet: */
   3 require_once $CFG->root .'config.php';
   4 require_once $CFG->root . 'lib/session_handler.inc.php';
   5
   6 class Utils {
   7
   8     private $timeout = false;
   9     private $settings;
  10     private $log_level;
  11     private $log_method;
  12     private $header = '<!DOCTYPE html>
  13 <html>
  14 <head>
  15     <meta charset="utf-8">
  16     <link rel="stylesheet" href="css/styles.css">
  17     <script>
  18         var timeout = __TIMEOUT__;
  19     </script>
  20     <script src="__ROOT__js/timer.js"></script>
  21     <script src="__ROOT__js/checkbox.js"></script>
  22     <script src="__ROOT__js/forms.js"></script>
  23     <title>__TITLE__</title>
  24 </head>
  25 <body><div id="container">';
  26     private $footer = '</div><div id="footer"><p>Powered by <a href="https://qtadmin.datanom.net"
  27             title="Goto QtAdmin homepage">QtAdmin</a>. &copy; 2015 by Michael Rasmussen</p>
  28     </div></body></html>';
  29     private $heading = '<p id="time" class="time">Session timeout:
  30             <span id="timer"></span></p><h1 class="h1">__TITLE__</h1>';
  31
  32     public function __construct() {
  33         global $CFG;
  34
  35         if (isset($CFG->log_level)) {
  36             $this->log_level = $CFG->log_level;
  37         } else {
  38             $this->log_level = 1;
  39         }
  40
  41         if (isset($CFG->log_method)) {
  42             $this->log_method = $CFG->log_method;
  43         } else {
  44             $this->log_level = 'syslog';
  45         }
  46
  47         $this->log("Init Utils", 4);
  48
  49         $this->log("__construct[1]: user ".var_export($this->settings['user'], true), 3);
  50         $this->startSession();
  51         $this->log("__construct[2]: user ".var_export($this->settings['user'], true), 3);
  52
  53         if (! isset($_SESSION['settings'])) {
  54             $this->initSettings();
  55         }
  56         $this->log("__construct[3]: user ".var_export($this->settings['user'], true), 3);
  57         $this->settings = $_SESSION['settings'];
  58         $this->log("__construct[4]: user ".var_export($this->settings['user'], true), 3);
  59
  60         if ($CFG->auth_method == 'HTTP_AUTH') {
  61             if (isset($_SERVER['PHP_AUTH_USER'])) {
  62                 $this->settings['user'] = $_SERVER['PHP_AUTH_USER'];
  63                 $this->settings['loginStatus'] = 'OK';
  64                 if ($CFG->admin_user == $this->settings['user'])
  65                     $this->settings['admin'] = true;
  66             }
  67         }
  68     }
  69
  70     private function log($message, $level = 1) {
  71         global $CFG;
  72
  73         if ($level > $this->log_level)
  74             return;
  75
  76         $time = date('c');
  77
  78         $priority = LOG_INFO;
  79         switch ($level) {
  80             case 1: $priority = LOG_ERR; break;
  81             case 2: $priority = LOG_WARNING; break;
  82             case 3: $priority = LOG_INFO; break;
  83             case 4: $priority = LOG_DEBUG; break;
  84         }
  85
  86         switch ($this->log_method) {
  87             case 'file':
  88                 if (isset($CFG->log_file)) {
  89                     if ($CFG->log_file[0] == '/') {
  90                         $file = $CFG->log_file;
  91                     } else {
  92                         $file = $CFG->root.$CFG->log_file;
  93                     }
  94                 } else {
  95                     $file = $CFG->root.'qtadmin.log';
  96                 }
  97                 file_put_contents($file, "[$time]: $message\n", FILE_APPEND | LOCK_EX);
  98                 chmod($file, 0600);
  99                 break;
 100             case 'stderr':
 101                 file_put_contents('php://stderr', "[$time]: $message\n");
 102                 break;
 103             case 'syslog':
 104                 syslog($priority, $message);
 105                 break;
 106         }
 107     }
 108
 109     private function initSettings() {
 110         $this->log("InitSettings", 4);
 111
 112         if ('' == session_id()) {
 113             $this->startSession();
 114         }
 115
 116         if (false !== $this->timeout) {
 117             $timeout = $this->timeout;
 118         } else {
 119             $timeout = 0;
 120         }
 121
 122         $this->settings = array(
 123             'user' => null,
 124             'admin' => false,
 125             'loginStatus' => 'Not logged in',
 126             'timeout' => $timeout
 127         );
 128
 129         $_SESSION['settings'] = $this->settings;
 130     }
 131
 132     private function startSession() {
 133         global $CFG;
 134
 135         $this->log("startSession", 4);
 136
 137         if (isset($CFG->session_timeout)) {
 138             $this->timeout = $CFG->session_timeout * 60;
 139         } else {
 140             $this->timeout = 20 * 60;
 141         }
 142
 143         if (ini_get('session.gc_maxlifetime') != $this->timeout)
 144             ini_set('session.gc_maxlifetime', $this->timeout);
 145         //if (ini_get('session.cookie_lifetime') != $this->timeout)
 146         //    ini_set('session.cookie_lifetime', $this->timeout);
 147         ini_set('session.cookie_lifetime', 0);
 148
 149         session_start();
 150     }
 151
 152     private function checkSession() {
 153         global $CFG;
 154
 155         $this->log("checkSession", 4);
 156
 157         if ('' == session_id()) {
 158             $this->startSession();
 159         }
 160
 161         $time = $_SERVER['REQUEST_TIME'];
 162         if (isset($_SESSION['LAST_ACTIVITY']) &&
 163                 ($time - $_SESSION['LAST_ACTIVITY']) >= $this->settings['timeout']) {
 164             $this->log('R_TIME: '.date('c', $time).' L_ACT: '.date('c', $_SESSION['LAST_ACTIVITY'].
 165             'Test: '.($time - $_SESSION['LAST_ACTIVITY'])).' >= '.$this->settings['timeout'], 3);
 166             $this->logout();
 167         } else {
 168             $_SESSION['LAST_ACTIVITY'] = $time;
 169         }
 170     }
 171
 172     public function logout() {
 173         $this->log("logout", 4);
 174
 175         if (ini_get('session.use_cookies')) {
 176             $params = session_get_cookie_params();
 177             setcookie(session_name(), '', time() - 42000,
 178                 $params['path'], $params['domain'],
 179                 $params['secure'], $params['httponly']);
 180         }
 181
 182         if ('' != session_id()) {
 183             $_SESSION = array();
 184             session_unset();
 185             session_destroy();
 186         }
 187         $this->settings = array();
 188     }
 189
 190     public function isAdmin() {
 191         $admin = false;
 192
 193         $this->log("isAdmin", 4);
 194
 195         if (isset($this->settings['admin'])) {
 196             $admin = $this->settings['admin'];
 197         }
 198
 199         return $admin;
 200     }
 201
 202     public function login($user, $pw) {
 203         global $CFG;
 204         $result = false;
 205
 206         $this->log("login", 4);
 207
 208         if ('' == session_id()) {
 209             $this->startSession();
 210         }
 211
 212         $this->settings['user'] = null;
 213         $this->settings['admin'] = false;
 214
 215         $p = explode('@', $user);
 216         if (count($p) != 2) {
 217            $this->settings['loginStatus'] = 'Bad username';
 218         } else {
 219             $domain = $p[1];
 220             $dn = "mail=$user,ou=Users,domainName=$domain,$CFG->ldap_base_dn";
 221             $filter = "(&(objectclass=mailUser)(accountStatus=active)(mail=$user))";
 222             $ds = @ldap_connect($CFG->ldap_dsn);
 223             if ($ds) {
 224                 @ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
 225                 $r = @ldap_bind($ds, $dn, $pw);
 226                 if ($r) {
 227                     $sr = @ldap_search($ds, $CFG->ldap_base_dn, $filter, array('mail','domainglobaladmin'));
 228                     $info = @ldap_get_entries($ds, $sr); // array
 229                     if ($info['count'] > 0) {
 230                         $this->settings['user'] = $user;
 231                         $result = true;
 232                         $this->settings['loginStatus'] = 'OK';
 233                         $admin = 'NO';
 234                         if (isset($info[0]['domainglobaladmin'])) {
 235                             $admin = $info[0]['domainglobaladmin'][0];
 236                             $admin = strtoupper($admin);
 237                         }
 238                         $this->settings['admin'] = ($admin == 'YES') ? true : false;
 239                     } else {
 240                         $this->settings['loginStatus'] = 'Login failed';
 241                     }
 242                 } else {
 243                     $this->settings['loginStatus'] = ldap_error($ds);
 244                 }
 245                 @ldap_close($ds);
 246             } else {
 247                 $this->settings['loginStatus'] = 'Connect to LDAP server failed';
 248             }
 249         }
 250
 251         $_SESSION['settings'] = $this->settings;
 252
 253         return $result;
 254     }
 255
 256     public function getLoginStatus() {
 257         $status = 'Not logged in';
 258
 259         $this->log("getLoginStatus", 4);
 260
 261         if (isset($this->settings['loginStatus'])) {
 262             $status = $this->settings['loginStatus'];
 263         }
 264
 265         return $status;
 266     }
 267
 268     public function isLoggedIn() {
 269         global $CFG;
 270         $loggedIn = false;
 271
 272         $this->log("isLoggedIn[1]: user ".var_export($this->settings['user'], true), 3);
 273
 274         if ('' == session_id()) {
 275             $this->startSession();
 276         }
 277
 278         $this->log("isLoggedIn[2]: user ".var_export($this->settings['user'], true), 3);
 279         $this->checkSession();
 280         $this->log("isLoggedIn[3]: user ".var_export($this->settings['user'], true), 3);
 281
 282         if (isset($this->settings['user'])) {
 283             if ($this->settings['user'] != null) {
 284                 $loggedIn = true;
 285             } else {
 286                 if ($CFG->auth_method == 'HTTP_AUTH') {
 287                     if (isset($_SERVER['PHP_AUTH_USER'])) {
 288                         $this->settings['user'] = $_SERVER['PHP_AUTH_USER'];
 289                         $loggedIn = true;
 290                     }
 291                 }
 292             }
 293         }
 294
 295         if ($loggedIn == false) {
 296             $this->log('$this->settings: '.var_export($this->settings, true), 3);
 297             $this->log('R_TIME: '.date('c', $_SERVER['REQUEST_TIME']).' L_ACT: '.date('c', $_SESSION['LAST_ACTIVITY']), 3);
 298         }
 299
 300         $_SESSION['settings'] = $this->settings;
 301
 302         return $loggedIn;
 303     }
 304
 305     public function getUser() {
 306         $user = null;
 307
 308         $this->log("getUser", 4);
 309
 310         if ($this->isLoggedIn()) {
 311             $user = $this->settings['user'];
 312         }
 313
 314         return $user;
 315     }
 316
 317     public function authorized($recipient) {
 318         $authorized = false;
 319
 320         $this->log("authorized '$recipient'", 3);
 321
 322         if ($this->isAdmin() || $this->getUser() == $recipient) {
 323             $authorized = true;
 324         }
 325         $msg = ($authorized) ? 'authorize' : 'not authorize';
 326         $this->log("$msg '".$this->getUser()."' rcpt '$recipient'", 3);
 327
 328         return $authorized;
 329     }
 330
 331     public function getHeader() {
 332         $this->log("getHeader", 4);
 333
 334         return $this->header;
 335     }
 336
 337     public function getFooter() {
 338         $this->log("getFooter", 4);
 339
 340         return $this->footer;
 341     }
 342
 343     public function getHeading() {
 344         $this->log("getHeading", 4);
 345
 346         return $this->heading;
 347     }
 348
 349     public function setHeading($heading) {
 350         global $CFG;
 351
 352         $this->log("setHeading", 4);
 353
 354         $timeout = $CFG->session_timeout * 60 * 1000;
 355         $this->heading = str_replace('__TITLE__', $heading, $this->heading);
 356         $this->header = str_replace('__TITLE__', $heading, $this->header);
 357         $this->header = str_replace('__ROOT__', $CFG->wwwroot, $this->header);
 358         $this->header = str_replace('__TIMEOUT__', $timeout, $this->header);
 359     }
 360
 361     public function convertContent($code) {
 362         $this->log("convertContent", 4);
 363
 364         $table = array(
 365             'V' => 'Virus',
 366             'B' => 'Banned',
 367             'U' => 'Unchecked',
 368             'S' => 'Spam',
 369             'Y' => 'Spammy',
 370             'M' => 'Bad Mime',
 371             'H' => 'Bad Header',
 372             'O' => 'Over sized',
 373             'T' => 'MTA err',
 374             'C' => 'Clean'
 375         );
 376
 377         $string = $table[$code];
 378         if (empty($string))
 379             $string = 'Unknown';
 380
 381         return $string;
 382     }
 383
 384 }