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WRZOOZ
2024-05-11 17:06:41 +02:00
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REAME.md Normal file
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# DHCPAdmin
## Sudo setup
There are two commands needed for this to work:
- `systemctl status isc-dhcp-server.service` to check if service does work
- `dhcp-lease-list --parsable` to get leases data
### Example sudoers configuration
```
Cmnd_Alias SYSTEMD_STATUS_DHCPD=/usr/bin/systemctl status isc-dhcp-server.service
Cmnd_Alias DHCP_LEASE_LIST=/usr/sbin/dhcp-lease-list --parsable
www-data ALL= NOPASSWD: SYSTEMD_STATUS_DHCPD, DHCP_LEASE_LIST
```

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index.php Normal file
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>DHCPAdmin</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">
</head>
<body>
<?php
$serviceStatusOKString = 'Active: active (running)';
$commandOutput = shell_exec("sudo /usr/bin/systemctl status isc-dhcp-server.service");
$serviceStatus = false;
if(str_contains($commandOutput, $serviceStatusOKString)) $serviceStatus = true;
?>
<?php if ($serviceStatus): ?>
<div class="alert alert-success" role="alert">
<h4 class="alert-heading">Service is running</h4>
<?php else: ?>
<div class="alert alert-danger" role="alert">
<h4 class="alert-heading">Service is stopped</h4>
<?php endif; ?>
<hr>
<pre class="mb-0">
<?php echo $commandOutput; ?>
</pre>
</div>
<table class="table">
<thead>
<tr>
<th scope="col">#</th>
<th scope="col">MAC</th>
<th scope="col">IP</th>
<th scope="col">HOSTNAME</th>
<th scope="col">BEGIN</th>
<th scope="col">END</th>
<th scope="col">MANUFACTURER</th>
</tr>
</thead>
<tbody>
<?php
$sourceData = shell_exec("sudo /usr/sbin/dhcp-lease-list --parsable");
$splittedData = explode(PHP_EOL, $sourceData);
for($i = 0; $i < count($splittedData); $i++)
{
$splittedDataRow = explode(' ', $splittedData[$i]);
if(!isset($splittedDataRow[2])) continue;
echo "<tr>\n";
echo "\t<th scope='row'>".$i."</th>\n";
echo "\t<td>".$splittedDataRow[1]."</td>\n";
echo "\t<td>".$splittedDataRow[3]."</td>\n";
echo "\t<td>".$splittedDataRow[5]."</td>\n";
echo "\t<td>".$splittedDataRow[7].' '.$splittedDataRow[8]."</td>\n";
echo "\t<td>".$splittedDataRow[10].' '.$splittedDataRow[11]."</td>\n";
echo "\t<td>".$splittedDataRow[13]."</td>\n";
echo "</tr>\n";
}
?>
</tbody>
</table>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-YvpcrYf0tY3lHB60NNkmXc5s9fDVZLESaAA55NDzOxhy9GkcIdslK1eN7N6jIeHz" crossorigin="anonymous"></script>
</body>
</html>