Initial commit

bla
2019-04-06 16:14:29 +02:00
parent cd762249ed
commit 57691246ed
50 changed files with 1247 additions and 0 deletions
--- a/dev/app/login/UserSession.php
+++ b/dev/app/login/UserSession.php
@@ -0,0 +1,92 @@
+<?php
+Class UserSession{
+    public $username = "undefined";
+    public $uid = -1;
+    public $token = "undefined";
+    public $expires;
+    public function UserSession($username, $uid, $token = "undefined"){
+        $this->username = $username;
+        $this->uid = $uid;
+        $this->token = $token;
+        $this->setExpiry();
+        //echo($username."<br>");
+        //echo($loginSessionToken);
+        $_SESSION['usersession'] = $this;
+        setcookie('usersession', $this->token);
+        setcookie('uid', $this->uid);
+    }
+    public function setSessionToken($token){
+        $this->token = $token; 
+    }
+    public function getSessionToken(){
+        return $this->token;
+    }
+    public function getFormattedExpiry(){
+        return $this->expires->format('Y-m-d H:i:s');
+    }
+    public function setExpiry(){
+        $this->expires = new DateTime();
+        $this->expires->modify("+ 1 hour");
+    }
+    public static function generateToken(){
+        $chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+        $token = "";
+        for ($i=0; $i < 32 ; $i++) { 
+            $token .= $chars[rand(0, strlen($chars) - 1)];
+        }
+        return $token;
+    }
+    public static function isSessionValid(){
+        if(isset($_SESSION['usersession'])){
+            if(!UserSession::isSessionExpired($_SESSION['usersession'])){
+                //check if session also exists in database
+                return true;
+            }
+        }
+        else{
+            if(isset($_COOKIE['usersession'])){
+                $token = $_COOKIE['usersession'];
+                $uid = $_COOKIE['uid'];
+                if(Database::isSessionValid($token,$uid)){
+                    $username = Database::getUsername($uid);
+                    $session = new UserSession($username, $uid, $token);
+                    $session->expires = new DateTime(Database::getSessionExpiryDate($token));
+                }
+                else{
+                    return false;
+                }
+                if(!UserSession::isSessionExpired($session)){
+                    return true;
+                }
+            }
+            return false;
+        }
+    }
+    public static function getSession()
+    {   
+        return $_SESSION['usersession'];
+    }
+    public static function isSessionExpired($session){
+        //session is expired
+        if(new DateTime() > $session->expires){
+            return true;
+        }
+        //session is not expired
+        else{
+            return false;
+        }
+    }
+    public static function isUserSignedIn(){
+        if(UserSession::isSessionValid()){
+            if(!UserSession::isSessionExpired(UserSession::getSession())){
+                if(Database::isSessionValid(UserSession::getSession()->token, UserSession::getSession()->uid)){
+                    return true;
+                }
+            }
+            else{
+                return false;
+            }
+        }
+    }
+}
+?>