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log.inout.ajax.php
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<?php
session_start();
include('conexion.php');
//If not isset -> set with dumy value so it doesn't complain unexpectedly echoing HTML full of "Notice: Undefined index"
if (!isset($_POST['login_userci']))
{$_POST['login_userci'] = "";}
if (!isset($_POST['login_userpass']))
{$_POST['login_userpass'] = "";}
$tipo_am=$_POST['tipo_am'];
switch ($tipo_am) {
case "login":
if ( !isset($_SESSION['username']) && !isset($_SESSION['userid']) ){
if ( @mysql_select_db($bd_base, $con) ){
$sql = 'SELECT CI,pass,tipo_usuario FROM usuarios WHERE CI="' . $_POST['login_userci']. '" && pass="' . $_POST['login_userpass'] . '" && status="OK" LIMIT 1'; // md5($_POST['login_userpass']) wasn't working
if ( @$res = @mysql_query($sql) ){
if ( @mysql_num_rows($res) == 1 ){
$user = @mysql_fetch_array($res);
$_SESSION['username'] = $user['tipo_usuario'];
$_SESSION['userid'] = $user['CI'];
if ( $_SESSION['username'] == "Administrador" ){
echo 3;
}
else
echo 1;
}
else
echo 0;
}
else
echo 0;
}
mysql_close($con);
}
else{
//ALREADY LOGGED
$sql = 'SELECT CI,pass,tipo_usuario FROM usuarios WHERE CI="' . $_POST['login_userci']. '" && pass="' . $_POST['login_userpass'] . '" && status="OK" LIMIT 1'; // md5($_POST['login_userpass']) wasn't working
if ( @$res = @mysql_query($sql) ){
if ( @mysql_num_rows($res) == 1 ){
$user = @mysql_fetch_array($res);
if ( $_SESSION['username']==$user['tipo_usuario'] && $_SESSION['userid']==$user['CI']){
if ( $_SESSION['username'] == "Administrador" ){
echo 3;
}
else
echo 1;
}
else
{//otra persona intenta logear desde el mismo equipo, se borra la sesión anterior.
unset($_SESSION['username']);
unset($_SESSION['userid']);
$_SESSION['username'] = $user['tipo_usuario'];
$_SESSION['userid'] = $user['CI'];
if ( $_SESSION['username'] == "Administrador" ){
echo 3;
}
else
echo 1;
}
}
else
echo 0;
}
else
echo 0;
}
@mysql_close();
break;
case "chk":
// revisa la sesión
if ( $_SESSION['username'] == "Administrador" ){
echo 3;
}
else
echo 1;
break;
}
?>