466 lines
19 KiB
PHP
466 lines
19 KiB
PHP
<?php
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$file = "/etc/ppp/chap-secrets";
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// Read the file into an array
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function readUsers($file) {
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$users = [];
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$lines = file($file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
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foreach ($lines as $line) {
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if (strpos($line, '#') === 0 || strpos($line, 'tunnel') === 0) continue; // Skip comments and tunnel line
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$parts = preg_split('/\s+/', $line);
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if (count($parts) == 4) {
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$users[] = [
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'client' => $parts[0],
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'server' => $parts[1],
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'secret' => $parts[2],
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'ip' => $parts[3]
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];
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}
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}
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return $users;
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}
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// Write the array back to the file
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function writeUsers($file, $users) {
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$content = "# Secrets for authentication using CHAP\n";
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$content .= "# client server secret IP addresses\n";
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$content .= "tunnel tunnel tunnel *\n";
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foreach ($users as $user) {
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$content .= "{$user['client']} {$user['server']} {$user['secret']} {$user['ip']}\n";
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}
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file_put_contents($file, $content);
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}
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// Generate random password
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function generateRandomPassword($length = 12) {
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return bin2hex(random_bytes($length / 2));
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}
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// Get the next available IP address
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function getNextIp($users) {
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if (empty($users)) {
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return '10.255.10.11';
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}
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$lastIp = end($users)['ip'];
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$lastIpLong = ip2long($lastIp);
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$nextIpLong = $lastIpLong + 1;
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// Define the current and next range boundaries
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$currentRangeStart = ip2long('10.255.' . explode('.', $lastIp)[2] . '.2');
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$currentRangeEnd = ip2long('10.255.' . explode('.', $lastIp)[2] . '.254');
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// Check if the next IP exceeds the current range, move to the next range if necessary
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if ($nextIpLong > $currentRangeEnd) {
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$nextRangeStart = ip2long('10.255.' . (explode('.', $lastIp)[2] + 1) . '.2');
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$nextRangeEnd = ip2long('10.255.' . (explode('.', $lastIp)[2] + 1) . '.254');
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// Ensure the next range does not exceed the defined ranges
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if ($nextRangeStart <= ip2long('10.255.255.254')) {
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$nextIpLong = $nextRangeStart;
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} else {
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// Handle the case when all ranges are exhausted (optional)
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// For simplicity, you might want to stop here or handle the wraparound
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die('No more IP addresses available in the defined ranges.');
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}
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}
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return long2ip($nextIpLong);
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}
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$users = readUsers($file);
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if ($_SERVER['REQUEST_METHOD'] === 'POST') {
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if (isset($_POST['add'])) {
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$client = $_POST['client'];
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$ip = $_POST['ip'] ?? getNextIp($users);
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// Check for duplicate username and IP
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foreach ($users as $user) {
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if ($user['client'] === $client) {
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echo json_encode(['error' => 'Username already exists']);
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exit();
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}
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if ($user['ip'] === $ip) {
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echo json_encode(['error' => 'IP address already exists']);
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exit();
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}
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}
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$newUser = [
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'client' => $client,
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'server' => '*',
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'secret' => $_POST['secret'],
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'ip' => $ip
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];
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$users[] = $newUser;
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writeUsers($file, $users);
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echo json_encode(['ip' => $newUser['ip']]);
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exit();
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} elseif (isset($_POST['delete'])) {
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$index = (int)$_POST['index'];
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array_splice($users, $index, 1);
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writeUsers($file, $users);
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exit();
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} elseif (isset($_POST['addMultiple'])) {
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$numUsers = (int)$_POST['numUsers'];
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$ipRangeFrom = !empty($_POST['ipRangeFrom']) ? ip2long($_POST['ipRangeFrom']) : ip2long(getNextIp($users));
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$ipRangeTo = !empty($_POST['ipRangeTo']) ? ip2long($_POST['ipRangeTo']) : $ipRangeFrom + $numUsers - 1;
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$newUsers = [];
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for ($i = 0; $i < $numUsers; $i++) {
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$username = 'user' . (count($users) + $i + 1);
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$userIp = long2ip($ipRangeFrom + $i);
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// Check for duplicate username and IP within existing and new users
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foreach (array_merge($users, $newUsers) as $user) {
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if ($user['client'] === $username) {
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echo json_encode(['error' => 'Username ' . $username . ' already exists']);
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exit();
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}
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if ($user['ip'] === $userIp) {
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echo json_encode(['error' => 'IP address ' . $userIp . ' already exists']);
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exit();
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}
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}
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// Ensure the IP range does not exceed the defined ranges
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if ($ipRangeFrom + $i > ip2long('10.255.255.254')) {
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echo json_encode(['error' => 'IP range exhausted. Please start a new range.']);
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exit();
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}
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$newUsers[] = [
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'client' => $username,
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'server' => '*',
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'secret' => generateRandomPassword(),
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'ip' => $userIp
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];
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}
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$users = array_merge($users, $newUsers);
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writeUsers($file, $users);
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echo json_encode(['success' => true]);
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exit();
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}
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}
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?>
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<!DOCTYPE html>
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<html>
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<head>
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<title>Manage L2TP Users</title>
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<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
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<meta http-equiv="X-UA-Compatible" content="ie=edge">
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<link href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.0/css/bootstrap.min.css" rel="stylesheet">
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<style>
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@keyframes fadeIn {
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from {
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opacity: 0;
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}
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to {
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opacity: 1;
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}
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}
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@keyframes fadeOut {
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from {
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opacity: 1;
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}
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to {
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opacity: 0;
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}
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}
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.fade-in {
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animation: fadeIn 0.5s;
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}
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.fade-out {
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animation: fadeOut 0.5s;
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}
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.table-responsive {
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overflow-x: auto;
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}
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</style>
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</head>
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<body>
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<div class="container mt-5">
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<h2 class="mb-4 text-center">Manage L2TP Users</h2>
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<div class="table-responsive">
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<table class="table table-hover table-bordered text-center">
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<thead class="table-dark">
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<tr>
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<th>Username</th>
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<th>Server</th>
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<th>Password</th>
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<th>IP Address</th>
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<th>Actions</th>
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</tr>
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</thead>
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<tbody id="userTable">
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<?php foreach ($users as $index => $user): ?>
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<tr id="user-<?php echo $index; ?>">
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<td><?php echo htmlspecialchars($user['client']); ?></td>
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<td><?php echo htmlspecialchars($user['server']); ?></td>
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<td><?php echo htmlspecialchars($user['secret']); ?></td>
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<td><?php echo htmlspecialchars($user['ip']); ?></td>
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<td>
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<button class="btn btn-danger btn-sm" onclick="confirmDelete(<?php echo $index; ?>)" data-bs-toggle="modal" data-bs-target="#confirmDeleteModal">Delete</button>
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</td>
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</tr>
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<?php endforeach; ?>
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</tbody>
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</table>
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</div>
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<div class="d-flex justify-content-center flex-wrap">
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<button class="btn btn-success me-2 mb-2" data-bs-toggle="modal" data-bs-target="#userModal" onclick="resetForm()">Add User</button>
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<button class="btn btn-secondary mb-2" data-bs-toggle="modal" data-bs-target="#multipleUsersModal">Add Multiple Users</button>
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</div>
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</div>
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<!-- User Modal -->
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<div class="modal fade" id="userModal" tabindex="-1" aria-labelledby="userModalLabel" aria-hidden="true">
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<div class="modal-dialog modal-dialog-centered">
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<div class="modal-content">
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<div class="modal-header">
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<h5 class="modal-title" id="userModalLabel">Add User</h5>
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<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
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</div>
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<div class="modal-body">
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<form id="addUserForm">
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<div class="mb-3">
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<label for="client" class="form-label">Username</label>
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<input type="text" class="form-control" id="client" name="client" required placeholder="Enter username">
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<small class="form-text text-muted">Example: user123</small>
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</div>
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<div class="mb-3" style="display: none;">
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<label for="server" class="form-label">Server</label>
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<input type="text" class="form-control" id="server" name="server" value="*" required>
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</div>
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<div class="mb-3">
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<label for="secret" class="form-label">Password</label>
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<input type="text" class="form-control" id="secret" name="secret" required placeholder="Enter password">
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<small class="form-text text-muted">Example: P@ssw0rd123</small>
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</div>
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<div class="mb-3 form-check">
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<input type="checkbox" class="form-check-input" id="manualIpCheck" onclick="toggleManualIp('single')">
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<label class="form-check-label" for="manualIpCheck">Select IP Manually</label>
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</div>
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<div class="mb-3" id="ipInputSingle" style="display: none;">
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<label for="ip" class="form-label">IP Address</label>
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<input type="text" class="form-control" id="ip" name="ip" placeholder="Enter IP address">
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<small class="form-text text-muted">Example: 10.255.10.15</small>
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</div>
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<button type="submit" class="btn btn-success w-100">Add User</button>
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</form>
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</div>
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</div>
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</div>
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</div>
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<!-- Multiple Users Modal -->
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<div class="modal fade" id="multipleUsersModal" tabindex="-1" aria-labelledby="multipleUsersModalLabel" aria-hidden="true">
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<div class="modal-dialog modal-dialog-centered">
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<div class="modal-content">
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<div class="modal-header">
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<h5 class="modal-title" id="multipleUsersModalLabel">Add Multiple Users</h5>
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<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
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</div>
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<div class="modal-body">
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<form id="addMultipleUsersForm">
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<div class="mb-3">
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<label for="numUsers" class="form-label">Number of Users</label>
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<input type="number" class="form-control" id="numUsers" name="numUsers" required placeholder="Enter number of users">
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</div>
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<div class="mb-3 form-check">
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<input type="checkbox" class="form-check-input" id="manualIpCheckMultiple" onclick="toggleManualIp('multiple')">
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<label class="form-check-label" for="manualIpCheckMultiple">Select IP Manually</label>
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</div>
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<div class="mb-3" id="ipInputMultiple" style="display: none;">
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<label for="ipRangeFrom" class="form-label">IP Range From</label>
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<input type="text" class="form-control" id="ipRangeFrom" name="ipRangeFrom" placeholder="Enter starting IP address">
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<small class="form-text text-muted">Example: 10.255.10.15</small>
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<label for="ipRangeTo" class="form-label mt-2">IP Range To</label>
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<input type="text" class="form-control" id="ipRangeTo" name="ipRangeTo" placeholder="Enter ending IP address">
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<small class="form-text text-muted">Example: 10.255.10.25</small>
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</div>
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<button type="submit" class="btn btn-success w-100">Add Users</button>
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</form>
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</div>
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</div>
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</div>
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</div>
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<!-- Confirm Delete Modal -->
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<div class="modal fade" id="confirmDeleteModal" tabindex="-1" aria-labelledby="confirmDeleteModalLabel" aria-hidden="true">
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<div class="modal-dialog modal-dialog-centered">
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<div class="modal-content">
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<div class="modal-header">
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<h5 class="modal-title" id="confirmDeleteModalLabel">Confirm Delete</h5>
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<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
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</div>
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<div class="modal-body">
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<p>Are you sure you want to delete this user?</p>
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</div>
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<div class="modal-footer">
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<form id="deleteUserForm" method="POST" action="">
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<input type="hidden" name="index" id="deleteIndex">
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<button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
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<button type="submit" class="btn btn-danger">Delete</button>
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</form>
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</div>
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</div>
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</div>
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</div>
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<!-- Error Modal -->
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<div class="modal fade" id="errorModal" tabindex="-1" aria-labelledby="errorModalLabel" aria-hidden="true">
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<div class="modal-dialog modal-dialog-centered">
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<div class="modal-content">
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<div class="modal-header">
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<h5 class="modal-title" id="errorModalLabel">Error</h5>
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</div>
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<div class="modal-body">
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<p id="errorMessage"></p>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-secondary" id="errorModalClose" aria-label="Close">Close</button>
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</div>
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</div>
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</div>
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</div>
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<script>
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document.getElementById('addUserForm').addEventListener('submit', function(event) {
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event.preventDefault();
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const client = document.getElementById('client').value;
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const server = document.getElementById('server').value;
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const secret = document.getElementById('secret').value;
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const ip = document.getElementById('manualIpCheck').checked ? document.getElementById('ip').value : '';
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const formData = new FormData();
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formData.append('add', '1');
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formData.append('client', client);
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formData.append('server', server);
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formData.append('secret', secret);
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if (ip) formData.append('ip', ip);
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fetch('', {
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method: 'POST',
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body: formData
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}).then(response => response.json()) // Expecting JSON response from the server
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.then(data => {
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if (data.error) {
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document.getElementById('errorMessage').textContent = data.error;
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document.getElementById('errorModal').classList.add('show');
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document.getElementById('errorModal').style.display = 'block';
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} else {
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const newRow = document.createElement('tr');
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newRow.classList.add('fade-in');
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const newIndex = document.getElementById('userTable').rows.length;
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newRow.id = `user-${newIndex}`;
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newRow.innerHTML = `
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<td>${client}</td>
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<td>${server}</td>
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<td>${secret}</td>
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<td>${data.ip}</td> <!-- Use the IP returned from the server -->
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<td>
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<button class="btn btn-danger btn-sm" onclick="confirmDelete(${newIndex})" data-bs-toggle="modal" data-bs-target="#confirmDeleteModal">Delete</button>
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</td>
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`;
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document.getElementById('userTable').appendChild(newRow);
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resetForm();
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document.querySelector('#userModal .btn-close').click();
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}
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});
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});
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// Close error modal on button click
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document.getElementById('errorModalClose').addEventListener('click', function() {
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document.getElementById('errorModal').classList.remove('show');
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document.getElementById('errorModal').style.display = 'none';
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});
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document.getElementById('addMultipleUsersForm').addEventListener('submit', function(event) {
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event.preventDefault();
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const numUsers = document.getElementById('numUsers').value;
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const ipRangeFrom = document.getElementById('manualIpCheckMultiple').checked ? document.getElementById('ipRangeFrom').value : '';
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const ipRangeTo = document.getElementById('manualIpCheckMultiple').checked ? document.getElementById('ipRangeTo').value : '';
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const formData = new FormData();
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formData.append('addMultiple', '1');
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formData.append('numUsers', numUsers);
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if (ipRangeFrom && ipRangeTo) {
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formData.append('ipRangeFrom', ipRangeFrom);
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formData.append('ipRangeTo', ipRangeTo);
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}
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fetch('', {
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method: 'POST',
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body: formData
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}).then(response => response.json())
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.then(data => {
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if (data.error) {
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document.getElementById('errorMessage').textContent = data.error;
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document.getElementById('errorModal').classList.add('show');
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document.getElementById('errorModal').style.display = 'block';
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} else {
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location.reload();
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}
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});
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});
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document.getElementById('deleteUserForm').addEventListener('submit', function(event) {
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event.preventDefault();
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const index = document.getElementById('deleteIndex').value;
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const formData = new FormData();
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formData.append('delete', '1');
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formData.append('index', index);
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fetch('', {
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method: 'POST',
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body: formData
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}).then(response => response.text())
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.then(data => {
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const row = document.getElementById(`user-${index}`);
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row.classList.add('fade-out');
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setTimeout(() => {
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if (row) row.remove();
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document.querySelector('#confirmDeleteModal .btn-close').click();
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}, 500);
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});
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});
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function resetForm() {
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document.getElementById('client').value = '';
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document.getElementById('server').value = '*';
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document.getElementById('secret').value = '';
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document.getElementById('ip').value = '';
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document.getElementById('manualIpCheck').checked = false;
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document.getElementById('ipInputSingle').style.display = 'none';
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}
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function toggleManualIp(formType) {
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if (formType === 'single') {
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const isChecked = document.getElementById('manualIpCheck').checked;
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document.getElementById('ipInputSingle').style.display = isChecked ? 'block' : 'none';
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} else if (formType === 'multiple') {
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const isChecked = document.getElementById('manualIpCheckMultiple').checked;
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document.getElementById('ipInputMultiple').style.display = isChecked ? 'block' : 'none';
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}
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}
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function confirmDelete(index) {
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document.getElementById('deleteIndex').value = index;
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}
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</script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.0/js/bootstrap.bundle.min.js"></script>
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</body>
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</html>
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