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Add check for valid session
[qtadmin.git] / lib / utils.inc.php
diff --git a/lib/utils.inc.php b/lib/utils.inc.php
index fadc39717c3626343508d9929cd1461388c1f6b8..c06729f7e023dbe7dd73bc2dbd174121337e0107 100644 (file)
--- a/lib/utils.inc.php
+++ b/lib/utils.inc.php
@@ -4,7 +4,10 @@ require_once $CFG->root .'config.php';
 
 class Utils {
 
+    private $timeout = false;
     private $settings;
+    private $log_level;
+    private $log_method;
     private $header = '<!DOCTYPE html>
 <html>
 <head>
@@ -26,6 +29,20 @@ class Utils {
     public function __construct() {
         global $CFG;
 
+        if (isset($CFG->log_level)) {
+            $this->log_level = $CFG->log_level;
+        } else {
+            $this->log_level = 1;
+        }
+
+        if (isset($CFG->log_method)) {
+            $this->log_method = $CFG->log_method;
+        } else {
+            $this->log_level = 'syslog';
+        }
+
+        $this->log("Init Utils", 4);
+
         $this->startSession();
 
         if (! isset($_SESSION['settings'])) {
@@ -43,17 +60,50 @@ class Utils {
         }
     }
 
+    private function log($message, $level = 1) {
+        global $CFG;
+
+        if ($level > $this->log_level)
+            return;
+
+        $time = date('c');
+
+        $priority = LOG_INFO;
+        switch ($level) {
+            case 1: $priority = LOG_ERR; break;
+            case 2: $priority = LOG_WARNING; break;
+            case 3: $priority = LOG_INFO; break;
+            case 4: $priority = LOG_DEBUG; break;
+        }
+
+        switch ($this->log_method) {
+            case 'file':
+            case 'stderr':
+            case 'syslog':
+                syslog($priority, $message);
+                break;
+        }
+    }
+
     private function initSettings() {
+        $this->log("InitSettings", 4);
+
         if ('' == session_id()) {
             $this->startSession();
         }
 
+        if (false !== $this->timeout) {
+            $timeout = $this->timeout;
+        } else {
+            $timeout = 0;
+        }
+
         $this->settings = array(
             'server' => $_SERVER,
             'user' => null,
             'admin' => false,
             'loginStatus' => 'Not logged in',
-            'timeout' => 0
+            'timeout' => $timeout
         );
 
         $_SESSION['settings'] = $this->settings;
@@ -62,18 +112,18 @@ class Utils {
     private function startSession() {
         global $CFG;
 
+        $this->log("startSession", 4);
+
         if (isset($CFG->session_timeout)) {
-            $this->settings['timeout'] = $CFG->session_timeout * 60;
+            $this->timeout = $CFG->session_timeout * 60;
         } else {
-            $this->settings['timeout'] = 20 * 60;
+            $this->timeout = 20 * 60;
         }
 
-        if (ini_get('session.gc_maxlifetime') != $this->settings['timeout'])
-            ini_set('session.gc_maxlifetime', $this->settings['timeout']);
-        if (ini_get('session.cookie_lifetime') != $this->settings['timeout'])
-            ini_set('session.cookie_lifetime', $this->settings['timeout']);
-
-        $_SESSION['settings'] = $this->settings;
+        if (ini_get('session.gc_maxlifetime') != $this->timeout)
+            ini_set('session.gc_maxlifetime', $this->timeout);
+        if (ini_get('session.cookie_lifetime') != $this->timeout)
+            ini_set('session.cookie_lifetime', $this->timeout);
 
         session_start();
     }
@@ -81,6 +131,8 @@ class Utils {
     private function checkSession() {
         global $CFG;
 
+        $this->log("checkSession", 4);
+
         if ('' == session_id()) {
             $this->startSession();
         }
@@ -96,6 +148,8 @@ class Utils {
     }
 
     public function logout() {
+        $this->log("logout", 4);
+
         if (ini_get('session.use_cookies')) {
             $params = session_get_cookie_params();
             setcookie(session_name(), '', time() - 42000,
@@ -114,6 +168,8 @@ class Utils {
     public function isAdmin() {
         $admin = false;
 
+        $this->log("isAdmin", 4);
+
         if (isset($this->settings['admin'])) {
             $admin = $this->settings['admin'];
         }
@@ -125,6 +181,8 @@ class Utils {
         global $CFG;
         $result = false;
 
+        $this->log("login", 4);
+
         if ('' == session_id()) {
             $this->startSession();
         }
@@ -176,6 +234,8 @@ class Utils {
     public function getLoginStatus() {
         $status = 'Not logged in';
 
+        $this->log("getLoginStatus", 4);
+
         if (isset($this->settings['loginStatus'])) {
             $status = $this->settings['loginStatus'];
         }
@@ -187,6 +247,8 @@ class Utils {
         global $CFG;
         $loggedIn = false;
 
+        $this->log("isLoggedIn", 4);
+
         if ('' == session_id()) {
             $this->startSession();
         }
@@ -220,6 +282,8 @@ class Utils {
     public function getUser() {
         $user = null;
 
+        $this->log("getUser", 4);
+
         if ($this->isLoggedIn()) {
             $user = $this->settings['user'];
         }
@@ -228,20 +292,28 @@ class Utils {
     }
 
     public function getHeader() {
+        $this->log("getHeader", 4);
+
         return $this->header;
     }
 
     public function getFooter() {
+        $this->log("getFooter", 4);
+
         return $this->footer;
     }
 
     public function getHeading() {
+        $this->log("getHeading", 4);
+
         return $this->heading;
     }
 
     public function setHeading($heading) {
         global $CFG;
 
+        $this->log("setHeading", 4);
+
         $timeout = $CFG->session_timeout * 60 * 1000;
         $this->heading = str_replace('__TITLE__', $heading, $this->heading);
         $this->header = str_replace('__TITLE__', $heading, $this->header);
@@ -250,6 +322,8 @@ class Utils {
     }
 
     public function convertContent($code) {
+        $this->log("convertContent", 4);
+
         $table = array(
             'V' => 'Virus',
             'B' => 'Banned',
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