Error problem PHP. Help?

newbe123 · November 23, 2010

I have created a login page where you can register, log in and log out. Here everything is saved on file (not MySQL or other databases). Everything works fine when I tested this in http://localhost/ but when I upload everything to a Web server, so that you can access them from "outside" then I get lots of error such as

Warning: fopen(userpwd.txt) [function.fopen]: failed to open stream: Permission denied in /afs/ltu.se/systemdata/www/students/somroy-0/gemensam.php on line 13

what can I do to fix this?

BlueSkyIS · November 23, 2010

failed to open stream: Permission denied

did you set the permissions on the file to allow apache/PHP to read the file?

newbe123 · November 23, 2010

I am so new with all of this. This is what I've done.

gemensam.php (common.php in English)

<?php

session_start();

function registerUser($user,$pass1,$pass2){
$errorText = '';

// Kontrollera lösenord
if ($pass1 != $pass2) $errorText = "Lösenorden är inte identiska!";
elseif (strlen($pass1) < 6) $errorText = "Lösenordet är för kort!";

// Kontrollera om användare redan existerar
$pfile = fopen("userpwd.txt","a+");
    rewind($pfile);

    while (!feof($pfile)) {
        $line = fgets($pfile);
        $tmp = explode(':', $line);
        if ($tmp[0] == $user) {
            $errorText = "Användarnamnet finns redan!";
            break;
        }
    }

    // Om allt är OK -> lagra användardata
    if ($errorText == ''){
	// Säkera lösenord sträng
	$userpass = md5($pass1);
    	
	fwrite($pfile, "\r\n$user:$userpass");
    }
    
    fclose($pfile);


return $errorText;
}

function loginUser($user,$pass){
$errorText = '';
$validUser = false;

// Kontrollera användare existerar	
$pfile = fopen("userpwd.txt","r");
    rewind($pfile);

    while (!feof($pfile)) {
        $line = fgets($pfile);
        $tmp = explode(':', $line);
        if ($tmp[0] == $user) {
            // Användaren finns, kolla lösenord
            if (trim($tmp[1]) == trim(md5($pass))){
            	$validUser= true;
            	$_SESSION['userName'] = $user;
            }
            break;
        }
    }
    fclose($pfile);

    if ($validUser != true) $errorText = "Ogiltigt användarnamn eller lösenord!";
    
    if ($validUser == true) $_SESSION['validUser'] = true;
    else $_SESSION['validUser'] = false;

return $errorText;	
}

function logoutUser(){
unset($_SESSION['validUser']);
unset($_SESSION['userName']);
}

function checkUser(){
if ((!isset($_SESSION['validUser'])) || ($_SESSION['validUser'] != true)){
	header('Location: loggain.php');
}
}

?>

Loggain.php (login.php in English)

<?php
require_once('gemensam.php');

$error = '0';

if (isset($_POST['submitBtn'])){
// Inmatning
$username = isset($_POST['username']) ? $_POST['username'] : '';
$password = isset($_POST['password']) ? $_POST['password'] : '';
        
// Försök att logga in användaren
$error = loginUser($username,$password);
}

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "DTD/xhtml1-transitional.dtd">
<html>
<head>
   <title>Inloggningssystem</title>
<link rel="stylesheet" type="text/css" href="stilmall.css" />
</head>
<body>
    
<?php if ($error != '') {?>
      <h1>Inloggning</h1>
     
      <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" name="loginform">
        <p>
         Användarnamn: <br /><input class="text" name="username" type="text"  /><br /><br />
          Lösenord:<br /> <input class="text" name="password" type="password" /><br /><br />
          <input class="text" type="submit" name="submitBtn" value="Login" />
         </p>
      </form>
                 
        <a href="registrera.php">Registrera</a>

      
<?php 
}   
    if (isset($_POST['submitBtn'])){

?>
     Resultat:</br>
     
     
<?php
if ($error == '') {
	echo "Welcome $username! <br/>Du är nu inloggad!<br/><br/>";
	echo '<a href="loggaut.php">Logga ut!</a>';
}


?>

<?php            
    }
?>

</body>

Registrera.php ( register.php in English)

<?php
require_once('gemensam.php');

if (isset($_POST['submitBtn'])){
	// Get user input
	$username  = isset($_POST['username']) ? $_POST['username'] : '';
	$password1 = isset($_POST['password1']) ? $_POST['password1'] : '';
	$password2 = isset($_POST['password2']) ? $_POST['password2'] : '';
        
	// Try to register the user
	$error = registerUser($username,$password1,$password2);
}	
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "DTD/xhtml1-transitional.dtd">

<html>
<head>
   <title>Inloggningssystem</title>
<link rel="stylesheet" type="text/css" href="stilmall.css" />
</head>
<body>
   
    
     <h1>Lägg till användare</h1>
      <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" name="registerform">
      <p>
         Användarnamn:<br /> <input class="text" name="username" type="text"  /><br /><br />
          Lösenord:<br /> <input class="text" name="password1" type="password" /><br /><br />
          Bekräfta lösenord:<br /><input class="text" name="password2" type="password" /><br /><br />
          <input class="text" type="submit" name="submitBtn" value="Register" />
         </p>
      </form>

        <a href="loggain.php">Logga in om du redan är registrerad</a><br /><br />

<?php   
if ((!isset($_POST['submitBtn'])) || ($error != '')) {

?>

<?php
}
    if (isset($_POST['submitBtn'])){


?>
   Resultat:<br />
      
      
<?php

if ($error == '') {
	echo " Användare: $username har registrerats!<br/><br/>";
	echo ' <a href="loggain.php">Logga in här</a>';

}
else echo $error;

?>

<?php            
    }
?>


</body>

loggaut.php (logout.php in English)

<?php
require_once('gemensam.php');
logoutUser();
header('Location: loggain.php');
?>

This is all so new to me and I am doing it but don't know what I'm doing!

newbe123 · November 23, 2010

how can I fix this. Help please

BlueSkyIS · November 23, 2010

Warning: fopen(userpwd.txt) [function.fopen]: failed to open stream: Permission denied

the problem is probably with the permissions on the file userpwd.txt. you need to update the permissions on that file so that your script can open it. using an ftp program or other, set the permissions on the file to 777. chmod 777.

newbe123 · November 23, 2010

I did that but still it does not work!

BlueSkyIS · November 23, 2010

try using the full path to userpwd.txt. it may be this:

$pfile = fopen($_SERVER['DOCUMENT_ROOT']."/userpwd.txt","a+");

newbe123 · November 23, 2010

no it did not work and this is what I get

Warning: fopen(/data/apache/www/userpwd.txt) [function.fopen]: failed to open stream: Permission denied in /afs/ltu.se/systemdata/www/students/somroy-0/gemensam.php on line 13

Warning: rewind(): supplied argument is not a valid stream resource in /afs/ltu.se/systemdata/www/students/somroy-0/gemensam.php on line 14

Warning: feof(): supplied argument is not a valid stream resource in /afs/ltu.se/systemdata/www/students/somroy-0/gemensam.php on line 16

Warning: fgets(): supplied argument is not a valid stream resource in /afs/ltu.se/systemdata/www/students/somroy-0/gemensam.php on line 17

newbe123 · November 24, 2010

newbe123 · November 24, 2010

I really really need help with this . anyone :confused:

Pikachu2000 · November 24, 2010

Don't bump threads so quickly unless you have new information to add.

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