Merge branch 'main' into issue-3911issue-3911

1 files changed, 116 insertions, 0 deletions

diff --git a/lib/phplib/Seminar_User.php b/lib/phplib/Seminar_User.php
new file mode 100644
index 0000000..4dd59bc
--- /dev/null
+++ b/lib/phplib/Seminar_User.php
@@ -0,0 +1,116 @@
+<?php
+/**
+ * Seminar_User.php
+ * global object representing current user
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * @author      André Noack <noack@data-quest.de>
+ * @copyright   2000 Stud.IP Core-Group
+ * @license     http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
+*/
+
+class Seminar_User
+{
+    public $cfg = null; //UserConfig object
+    private $user = null; //User object
+    //private $last_online_time = null;
+
+    public function __construct($user = null)
+    {
+        if ($user instanceOf User) {
+            $this->user = $user;
+        } else {
+            $this->user = User::findFull($user);
+        }
+        if (!isset($this->user)) {
+            $this->user = new User();
+            $this->user->user_id = 'nobody';
+            $this->user->perms = null;
+        }
+        $this->cfg = UserConfig::get($this->user->user_id);
+        //$this->last_online_time = $this->get_last_action();
+    }
+
+    public function getAuthenticatedUser()
+    {
+        return $this->user->id !== 'nobody' ? $this->user : null;
+    }
+
+    private function get_last_action()
+    {
+        if ($this->id && $this->id != 'nobody') {
+            $stmt = DBManager::get()->prepare("SELECT last_lifesign FROM user_online WHERE user_id = ?");
+            $stmt->execute([$this->id]);
+            return $stmt->fetchColumn();
+        }
+    }
+
+    public function set_last_action($timestamp = 0)
+    {
+        if ($this->id && $this->id != 'nobody') {
+            if ($timestamp <= 0) {
+                $current_user_last_lifesign = $_SESSION['USER_LAST_LIFESIGN'] ?? 0;
+                if (time() - $current_user_last_lifesign < 180) {
+                    return 0;
+                }
+                $timestamp = time();
+            }
+            $query = "INSERT INTO user_online (user_id, last_lifesign)
+                      VALUES (:user_id, UNIX_TIMESTAMP() - :time_delta)
+                      ON DUPLICATE KEY UPDATE last_lifesign = UNIX_TIMESTAMP() - :time_delta";
+            $stmt = DBManager::get()->prepare($query);
+            $stmt->bindValue(':user_id', $this->id);
+            $stmt->bindValue(':time_delta', time() - $timestamp, PDO::PARAM_INT);
+            $stmt->execute();
+            $_SESSION['USER_LAST_LIFESIGN'] = time() - $timestamp;
+            return $stmt->rowCount();
+        }
+    }
+
+    public function delete()
+    {
+        if ($this->id && $this->id != 'nobody') {
+            $stmt = DBManager::get()->prepare("DELETE FROM user_online WHERE user_id = ?");
+            $stmt->execute([$this->id]);
+            return $stmt->rowCount();
+        }
+    }
+
+    public function __get($field)
+    {
+        if ($field == 'id') {
+            return $this->user->user_id;
+        }
+        return $this->user->$field;
+    }
+
+    public function __set($field, $value)
+    {
+        return null;
+    }
+
+    public function __isset($field)
+    {
+        return isset($this->user->$field);
+    }
+
+    public function getFullName($format = 'full')
+    {
+        return $this->user->getFullName($format);
+    }
+
+    /**
+     * Returns whether the current needs to accept the terms of use.
+     * @return bool
+     */
+    public function needsToAcceptTerms()
+    {
+        return $this->id !== 'nobody'
+            && Config::get()->SHOW_TERMS_ON_FIRST_LOGIN
+            && !$this->cfg->TERMS_ACCEPTED;
+    }
+}