'); $to_return = str_replace($bad, " ",$text); return $to_return; } function logUserIn($HTTP_POST_VARS){ //kullanıcı adı şifrenini adam gibi girildiğinden emin olalım $username='/^[A-Za-z0-9_\-\.\& üğşçöıÜĞİŞÇÖ]{4,20}$/'; $pass='/^[A-Za-z0-9_\*\?\-\.\&üğşçıÜĞİŞÇ ]{1,30}$/'; $kullanici=$HTTP_POST_VARS[kullanici]; if(isset($HTTP_POST_VARS[pass])){ if (preg_match($pass, $HTTP_POST_VARS[pass]) ){//şifre karakter sorgulaması yapar $postPass=md5($HTTP_POST_VARS[pass]); }else{ login_screen("Hatalı şifre veya kullanıcı adı."); exit; } } require_once("mysql.php"); $sql_connection= new mysql_works(); //cookiede önceden session bırakılmış mı bakalım if(isset($_COOKIE['user'])){ $cook_user=mysql_real_escape_string($_COOKIE[user]); $rm=mysql_real_escape_string($_COOKIE[rm]); $query="SELECT kullanici_adi,sifre from kullanici where remember_me='$rm'"; $preSes=mysql_fetch_assoc($sql_connection->Query($query)); if(!isset($postPass)){ $postPass=$preSes[sifre]; $kullanici=$preSes[kullanici_adi]; $HTTP_POST_VARS[rm]=="on"; } } if (preg_match($username, $kullanici) ) { //şifre ve user adam gibi girilmişse querimizi yapalım $query="select * from kullanici where kullanici_adi='".mysql_real_escape_string($kullanici)."' and is_aktif=1 limit 1"; $result=$sql_connection->Query($query); $entity=mysql_fetch_assoc($result); $sifre= $entity[sifre]; if($sifre==$postPass && $sifre){ $_SESSION['kullanici_adi'] = $entity[kullanici_adi]; $_SESSION['id_kullanici'] = $entity[id_kullanici]; $_SESSION['ad'] = $entity[adi]." ".$entity[soyadi]; $_SESSION['oturum'] = "acik";//session fixation vulnerability engellemek için step-2 $_SESSION['utype']=$entity[type]; $_SESSION['seviye']=$entity[seviye]; $_SESSION[code]="hsb23749dusljxna7639329dbfb245"; //admini kral yapar if($_SESSION['kullanici_adi']=="serkan") $_SESSION['utype']='yk'; if($_SESSION['kullanici_adi']=="mrtksn") $_SESSION['utype']='yk'; if($entity[seviye]=="Eğitmen") $_SESSION['utype']='yk'; if($entity[seviye]=="Yardımcı Eğitmen") $_SESSION['utype']='yk'; //activite kaydet if($HTTP_POST_VARS[rm]=="on"){ $random_str=createRandomString();//remember me için veri tabanında tutar setcookie("rm",$random_str,time()+(60*60*24*7)); setcookie("user",$kullanici,time()+(60*60*24*7)); }else{ $random_str=""; } $query="UPDATE kullanici SET ip = '".mysql_real_escape_string($_SERVER[REMOTE_ADDR])."',son_aktivite=now(),last_login=now(),remember_me = '".$random_str."' WHERE kullanici_adi = '".mysql_real_escape_string($kullanici)."' "; $sql_connection->Query($query); page_top(); require_once("pop.anasayfa.php"); $eklenecek_form=new anasayfa(); $eklenecek_form->handle_anasayfa($HTTP_GET_VARS,$HTTP_POST_VARS); page_bottom(); }else{ login_screen("Hatalı şifre veya kullanıcı adı."); } }else{ login_screen(); } } ?>

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