apanub/l2tp-manager-gui
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Added (Check Duplicates Before Adding New User)

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This commit is contained in:
Abanoub Hany 2024-07-01 19:24:48 +03:00
parent 5d453d565d
commit 78804d508a
1 changed files with 30 additions and 10 deletions
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40
index.php
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@ -1,6 +1,7 @@
<?php
$file = "/etc/ppp/chap-secrets";
//$file = "/etc/ppp/chap-secrets";
$file = "./chap-secrets";
// Read the file into an array
function readUsers($file) {
@ -37,6 +38,21 @@ function generateRandomPassword($length = 12) {
return bin2hex(random_bytes($length / 2));
}
// Generate unique username
function generateUniqueUsername($users) {
do {
$username = 'user' . bin2hex(random_bytes(4));
$unique = true;
foreach ($users as $user) {
if ($user['client'] === $username) {
$unique = false;
break;
}
}
} while (!$unique);
return $username;
}
// Get the next available IP address
function getNextIp($users) {
if (empty($users)) {
@ -109,23 +125,25 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
$ipRangeTo = !empty($_POST['ipRangeTo']) ? ip2long($_POST['ipRangeTo']) : $ipRangeFrom + $numUsers - 1;
$newUsers = [];
$addedUsers = 0;
for ($i = 0; $i < $numUsers; $i++) {
$username = 'user' . (count($users) + $i + 1);
for ($i = 0; $addedUsers < $numUsers; $i++) {
$username = generateUniqueUsername(array_merge($users, $newUsers));
$userIp = long2ip($ipRangeFrom + $i);
// Check for duplicate username and IP within existing and new users
// Check for duplicate IP within existing and new users
$isDuplicateIp = false;
foreach (array_merge($users, $newUsers) as $user) {
if ($user['client'] === $username) {
echo json_encode(['error' => 'Username ' . $username . ' already exists']);
exit();
}
if ($user['ip'] === $userIp) {
echo json_encode(['error' => 'IP address ' . $userIp . ' already exists']);
exit();
$isDuplicateIp = true;
break;
}
}
if ($isDuplicateIp) {
continue;
}
// Ensure the IP range does not exceed the defined ranges
if ($ipRangeFrom + $i > ip2long('10.255.255.254')) {
echo json_encode(['error' => 'IP range exhausted. Please start a new range.']);
@ -138,6 +156,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
'secret' => generateRandomPassword(),
'ip' => $userIp
];
$addedUsers++;
}
$users = array_merge($users, $newUsers);
@ -148,6 +167,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
}
?>
<!DOCTYPE html>
<html>
<head>