Problema con sessioni e file .txt
Ciao a tutti...
Ormai è da giorni che cerco di capire come poter utilizzare le sessioni con i file di testo e visto che non ho trovato nulla sui motori di ricerca, mi affido a voi.
Io ho un database .txt di nome user.txt in cui ho i dati degli utenti, scritto in questo modo:
Codice:
id||nome||email||password
e una pagina di login scritta così:
Codice PHP:
<?php session_start();
// Data file
$data = "users.txt";
// Enable / Disable user registration: 1 = enabled, 0 = disabled
$registration = 1;
// Main cascading stylesheets
$style = '
html, body {
height: 99%;
font-family: Arial, Verdana;
font-size: 12px;
}
#titlebar {
position: relative;
height: 20px;
width: 260px;
border-top: 1px solid #000000;
border-left: 1px solid #000000;
border-right: 1px solid #000000;
background-color: #ffb71b;
color: #000000;
text-align: center;
font-size: 16px;
}
#foot {
position: relative;
height: 20px;
width: 260px;
color: #000000;
text-align: center;
font-size: 10px;
}
input.text {
width: 220px;
height: 20px;
border: 1px solid #000000;
background-color: #ffeecb;
}
input.btn {
width: 60px;
height: 20px;
border: 1px solid #000000;
background-color: #ffb71b;
color: #000000;
}
input.btn:hover {
cursor: pointer;
}
a {
color: #ffb71b;
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
';
$log_style = '
#wrapper {
position: absolute;
height: 185px;
width: 260px;
text-align: center;
color: #000000;
left: 50%;
top: 50%;
margin-left: -130px;
margin-top: -85px;
}
#form {
position: relative;
height: 165px;
width: 260px;
border: 1px solid #000000;
background-color: #fff9eb;
color: #000000;
text-align: left;
}
';
$reg_style = '
#wrapper {
position: absolute;
height: 270px;
width: 260px;
text-align: center;
color: #000000;
left: 50%;
top: 50%;
margin-left: -130px;
margin-top: -135px;
}
#form {
position: relative;
height: 250px;
width: 260px;
border: 1px solid #000000;
background-color: #fff9eb;
color: #000000;
text-align: left;
}
';
// Do not edit below this line
$users = $path . $data;
if (file_exists($users)) {
$records = count(file($users));
}
else {
fopen($users, 'w') or die("Can't open user database.");
}
if (isset($_GET['ls_logout'])) {
unset($_SESSION['ls_id']);
unset($_SESSION['ls_user']);
unset($_SESSION['ls_email']);
}
if (isset($_POST)) {
$login = FALSE;
$register = FALSE;
$errors = '';
foreach ($_POST as $key => $value) {
if ($key == "ls_reg") { $login = FALSE; $register = TRUE; }
else if ($key == "ls_log") { $login = TRUE; $register = FALSE; }
else if ($key == "ls_user") {
if (!eregi('^[[:alnum:]\.\'\-]{3,15}$', $value)) { $u_invalid = 1; }
$user = $value;
}
else if ($key == "ls_email") {
if (!eregi('^[a-zA-Z]+[a-zA-Z0-9_-]*@([a-zA-Z0-9_-]+){1}(\.[a-zA-Z0-9]+){1,2}', $value)) { $e_invalid = 1; }
$email = $value;
}
else if ($key == "ls_pass") {
if (!eregi("^[[:alnum:]\.\'\-]{3,15}$", $value)) { $p_invalid = 1; }
$pass = md5($value);
}
else if ($key == "ls_repeat") { $repeat = md5($value); }
}
}
if ($login == TRUE) {
if (file_exists($users)) {
$lines = file($users);
foreach ($lines as $line_num => $line) {
$array = explode("||",str_replace("\n","",$line));
$c_id = $array[0];
$c_user = $array[1];
$c_email = $array[2];
$c_pass = $array[3];
if ($c_user == $user && $c_pass == $pass) {
$_SESSION['ls_id'] = $c_id;
$_SESSION['ls_user'] = $c_user;
$_SESSION['ls_email'] = base64_decode($c_email);
}
}
if (!isset($_SESSION['ls_id']) || !isset($_SESSION['ls_user']) || !isset($_SESSION['ls_email'])) {
$errors[] = "Invalid Login.";
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Login Error</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<style type="text/css">
<?php echo $style; ?>
<?php echo $log_style; ?>
</style>
</head>
<body>
<div id="wrapper">
<div id="titlebar">Errors</div>
<div id="form">
<div style="padding:10px;">
<ul style="padding:0px;margin:15px;">
<?php
foreach ($errors as $msg) {
echo "<li style=\"padding:0px;margin:0px;\">$msg</li>";
}
$errors = '';
?>
</ul>
<div style="text-align:center;padding:20px;">
<a href="<?php echo $_SERVER['HTTP_REFERER']; ?>" rel="">Click Here</a> to go back.
</div>
</div>
</div>
</div>
</body>
</html>
<?php
exit();
}
}
}
else if ($register == TRUE) {
if (file_exists($users)) {
$lines = file($users);
foreach ($lines as $line_num => $line) {
$array = explode("||",str_replace("\n","",$line));
$c_id = $array[0];
$c_user = $array[1];
$c_email = $array[2];
$c_pass = $array[3];
if ($user == $c_user) { $u_taken = 1; }
if (base64_encode($email) == $c_email) { $e_taken = 1; }
}
if ($user == NULL) { $errors[] = "User cannot be blank."; }
if ($u_invalid == 1) { $errors[] = "User <strong>$user</strong> is invalid. 3-15 alphanumeric characters required."; }
if ($u_taken == 1) { $errors[] = "Username <strong>$user</strong> is already taken."; }
if ($email == NULL) { $errors[] = "Email cannot be blank."; }
if ($e_invalid == 1) { $errors[] = "Email address <strong>$email</strong> is invalid."; }
if ($e_taken == 1) { $errors[] = "Email address <strong>$email</strong> is already taken."; }
if ($pass == md5(NULL)) { $errors[] = "Password cannot be blank."; }
if ($p_invalid == 1) { $errors[] = "Password is invalid. 3-15 alphanumeric characters required."; }
if ($repeat == md5(NULL)) { $errors[] = "Password verification cannot be blank."; }
if ($pass != $repeat) { $errors[] = "Password and verification do not match."; }
}
if (empty($errors)) {
$newline = $records++;
$e_email = base64_encode($email);
$data = "$newline||$user||$e_email||$pass||\n";
$fh = fopen($users, 'a') or die("Can't open user database.");
fwrite($fh, $data);
fclose($fh);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Registration Success</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<style type="text/css">
<?php echo $style; ?>
<?php echo $log_style; ?>
</style>
</head>
<body>
<div id="wrapper">
<div id="titlebar">Success</div>
<div id="form">
<div style="text-align:center;padding:20px;">
You are now registered.<br />
<a href="<?php echo $_SERVER['REQUEST_URI']; ?>" rel="">Click Here</a> to log in.
</div>
</div>
</div>
</body>
</html>
<?php
exit();
}
else {
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Registration Error</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<style type="text/css">
<?php echo $style; ?>
<?php echo $reg_style; ?>
</style>
</head>
<body>
<div id="wrapper">
<div id="titlebar">Errors</div>
<div id="form">
<div style="padding:10px;">
<ul style="padding:0px;margin:15px;">
<?php
foreach ($errors as $msg) {
echo "<li style=\"padding:0px;margin:0px;\">$msg</li>";
}
$errors = '';
?>
</ul>
<div style="text-align:center;padding:20px;">
<a href="<?php echo $_SERVER['HTTP_REFERER']; ?>" rel="">Click Here</a> to go back.
</div>
</div>
</div>
</div>
</body>
</html>
<?php
exit();
}
}
else if (isset($_GET['ls_register'])) {
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>New User Registration</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<style type="text/css">
<?php echo $style; ?>
<?php echo $reg_style; ?>
</style>
</head>
<body>
<div id="wrapper">
<div id="titlebar">Register</div>
<div id="form">
<form action="<?php echo $_SERVER['PHP_SELF'] ?>" method="post">
<div style="text-align:left;padding:20px;width:220px;">
<label>User:<br />
<input type="text" name="ls_user" value="" class="text" /></label><br />
<label>Email Address:<br />
<input type="text" name="ls_email" value="" class="text" /></label><br />
<label>Password:
<input type="password" name="ls_pass" value="" class="text" /></label><br />
<label>Password Repeat:
<input type="password" name="ls_repeat" value="" class="text" /></label><br />
<div style="text-align:center;margin:20px 0px 20px 0px;">
<input type="submit" name="ls_reg" value="Register" class="btn" />
</div>
</div>
</form>
</div>
</div>
</body>
</html>
<?php
exit();
}
else if (!isset($_SESSION['ls_id']) && !isset($_SESSION['ls_user']) && !isset($_SESSION['ls_email'])) {
?>
il resto del messaggio lo continuo dopo
