raspap-webgui-mirror/includes/dhcp.php
2019-07-30 21:21:16 +02:00

267 lines
9.6 KiB
PHP
Executable file

<?php
include_once('includes/status_messages.php');
/**
*
* Manage DHCP configuration
*
*/
function DisplayDHCPConfig()
{
$status = new StatusMessages();
if (isset($_POST['savedhcpdsettings'])) {
if (CSRFValidate()) {
$errors = '';
define('IFNAMSIZ', 16);
if (!preg_match('/^[a-zA-Z0-9]+$/', $_POST['interface']) ||
strlen($_POST['interface']) >= IFNAMSIZ) {
$errors .= _('Invalid interface name.').'<br />'.PHP_EOL;
}
if (!preg_match('/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\z/', $_POST['RangeStart']) &&
!empty($_POST['RangeStart'])) { // allow ''/null ?
$errors .= _('Invalid DHCP range start.').'<br />'.PHP_EOL;
}
if (!preg_match('/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\z/', $_POST['RangeEnd']) &&
!empty($_POST['RangeEnd'])) { // allow ''/null ?
$errors .= _('Invalid DHCP range end.').'<br />'.PHP_EOL;
}
if (!ctype_digit($_POST['RangeLeaseTime']) && $_POST['RangeLeaseTimeUnits'] !== 'infinite') {
$errors .= _('Invalid DHCP lease time, not a number.').'<br />'.PHP_EOL;
}
if (!in_array($_POST['RangeLeaseTimeUnits'], array('m', 'h', 'd', 'infinite'))) {
$errors .= _('Unknown DHCP lease time unit.').'<br />'.PHP_EOL;
}
$return = 1;
if (empty($errors)) {
$config = 'interface='.$_POST['interface'].PHP_EOL.
'dhcp-range='.$_POST['RangeStart'].','.$_POST['RangeEnd'].
',255.255.255.0,';
if ($_POST['RangeLeaseTimeUnits'] !== 'infinite') {
$config .= $_POST['RangeLeaseTime'];
}
$config .= $_POST['RangeLeaseTimeUnits'];
file_put_contents("/tmp/dhcpddata", $config);
system('sudo cp /tmp/dhcpddata '.RASPI_DNSMASQ_CONFIG, $return);
} else {
$status->addMessage($errors, 'danger');
}
if ($return == 0) {
$status->addMessage('Dnsmasq configuration updated successfully', 'success');
} else {
$status->addMessage('Dnsmasq configuration failed to be updated.', 'danger');
}
} else {
error_log('CSRF violation');
}
}
exec('pidof dnsmasq | wc -l', $dnsmasq);
$dnsmasq_state = ($dnsmasq[0] > 0);
if (isset($_POST['startdhcpd'])) {
if (CSRFValidate()) {
if ($dnsmasq_state) {
$status->addMessage('dnsmasq already running', 'info');
} else {
exec('sudo /etc/init.d/dnsmasq start', $dnsmasq, $return);
if ($return == 0) {
$status->addMessage('Successfully started dnsmasq', 'success');
$dnsmasq_state = true;
} else {
$status->addMessage('Failed to start dnsmasq', 'danger');
}
}
} else {
error_log('CSRF violation');
}
} elseif (isset($_POST['stopdhcpd'])) {
if (CSRFValidate()) {
if ($dnsmasq_state) {
exec('sudo /etc/init.d/dnsmasq stop', $dnsmasq, $return);
if ($return == 0) {
$status->addMessage('Successfully stopped dnsmasq', 'success');
$dnsmasq_state = false;
} else {
$status->addMessage('Failed to stop dnsmasq', 'danger');
}
} else {
$status->addMessage('dnsmasq already stopped', 'info');
}
} else {
error_log('CSRF violation');
}
} else {
if ($dnsmasq_state) {
$status->addMessage('Dnsmasq is running', 'success');
} else {
$status->addMessage('Dnsmasq is not running', 'warning');
}
}
exec('cat '. RASPI_DNSMASQ_CONFIG, $return);
$conf = ParseConfig($return);
$arrRange = explode(",", $conf['dhcp-range']);
$RangeStart = $arrRange[0];
$RangeEnd = $arrRange[1];
$RangeMask = $arrRange[2];
$leaseTime = $arrRange[3];
$hselected = '';
$mselected = '';
$dselected = '';
$infiniteselected = '';
preg_match('/([0-9]*)([a-z])/i', $leaseTime, $arrRangeLeaseTime);
if ($leaseTime === 'infinite') {
$infiniteselected = ' selected="selected"';
} else {
switch ($arrRangeLeaseTime[2]) {
case 'h':
$hselected = ' selected="selected"';
break;
case 'm':
$mselected = ' selected="selected"';
break;
case 'd':
$dselected = ' selected="selected"';
break;
}
}
?>
<div class="row">
<div class="col-lg-12">
<div class="panel panel-primary">
<div class="panel-heading"><i class="fa fa-exchange fa-fw"></i> <?php echo _("Configure DHCP"); ?></div>
<!-- /.panel-heading -->
<div class="panel-body">
<p><?php $status->showMessages(); ?></p>
<!-- Nav tabs -->
<ul class="nav nav-tabs">
<li class="active"><a href="#server-settings" data-toggle="tab"><?php echo _("Server settings"); ?></a>
</li>
<li><a href="#client-list" data-toggle="tab"><?php echo _("Client list"); ?></a>
</li>
</ul>
<!-- Tab panes -->
<div class="tab-content">
<div class="tab-pane fade in active" id="server-settings">
<h4>DHCP server settings</h4>
<form method="POST" action="?page=dhcpd_conf">
<?php CSRFToken() ?>
<div class="row">
<div class="form-group col-md-4">
<label for="code">Interface</label>
<select class="form-control" name="interface">
<?php
exec("ip -o link show | awk -F': ' '{print $2}'", $interfaces);
foreach ($interfaces as $inet) {
$select = '';
if ($inet === $conf['interface']) {
$select = ' selected="selected"';
}
echo ' <option value="'.htmlspecialchars($inet, ENT_QUOTES).'"'.
$select.'>'.htmlspecialchars($inet, ENT_QUOTES).'</option>' , PHP_EOL;
}
?>
</select>
</div>
</div>
<div class="row">
<div class="form-group col-md-4">
<label for="code"><?php echo _("Starting IP Address"); ?></label>
<input type="text" class="form-control"name="RangeStart" value="<?php echo htmlspecialchars($RangeStart, ENT_QUOTES); ?>" />
</div>
</div>
<div class="row">
<div class="form-group col-md-4">
<label for="code"><?php echo _("Ending IP Address"); ?></label>
<input type="text" class="form-control" name="RangeEnd" value="<?php echo htmlspecialchars($RangeEnd, ENT_QUOTES); ?>" />
</div>
</div>
<div class="row">
<div class="form-group col-xs-2 col-sm-2">
<label for="code"><?php echo _("Lease Time"); ?></label>
<input type="text" class="form-control" name="RangeLeaseTime" value="<?php echo htmlspecialchars($arrRangeLeaseTime[1], ENT_QUOTES); ?>" />
</div>
<div class="col-xs-2 col-sm-2">
<label for="code"><?php echo _("Interval"); ?></label>
<select name="RangeLeaseTimeUnits" class="form-control" >
<option value="m"<?php echo $mselected; ?>><?php echo _("Minute(s)"); ?></option>
<option value="h"<?php echo $hselected; ?>><?php echo _("Hour(s)"); ?></option>
<option value="d"<?php echo $dselected; ?>><?php echo _("Day(s)"); ?></option>
<option value="infinite"<?php echo $infiniteselected; ?>><?php echo _("Infinite"); ?></option>
</select>
</div>
</div>
<input type="submit" class="btn btn-outline btn-primary" value="<?php echo _("Save settings"); ?>" name="savedhcpdsettings" />
<?php
if ($dnsmasq_state) {
echo '<input type="submit" class="btn btn-warning" value="' . _("Stop dnsmasq") . '" name="stopdhcpd" />';
} else {
echo'<input type="submit" class="btn btn-success" value="' . _("Start dnsmasq") . '" name="startdhcpd" />';
}
?>
</form>
</div><!-- /.tab-pane -->
<div class="tab-pane fade in" id="client-list">
<h4>Client list</h4>
<div class="col-lg-12">
<div class="panel panel-default">
<div class="panel-heading"><?php echo _("Active DHCP leases"); ?></div>
<!-- /.panel-heading -->
<div class="panel-body">
<div class="table-responsive">
<table class="table table-hover">
<thead>
<tr>
<th><?php echo _("Expire time"); ?></th>
<th><?php echo _("MAC Address"); ?></th>
<th><?php echo _("IP Address"); ?></th>
<th><?php echo _("Host name"); ?></th>
<th><?php echo _("Client ID"); ?></th>
</tr>
</thead>
<tbody>
<?php
exec('cat ' . RASPI_DNSMASQ_LEASES, $leases);
foreach ($leases as $lease) {
echo ' <tr>'.PHP_EOL;
$lease_items = explode(' ', $lease);
foreach ($lease_items as $lease_item) {
echo ' <td>'.htmlspecialchars($lease_item, ENT_QUOTES).'</td>'.PHP_EOL;
}
echo ' </tr>'.PHP_EOL;
};
?>
</tbody>
</table>
</div><!-- /.table-responsive -->
</div><!-- /.panel-body -->
</div><!-- /.panel -->
</div><!-- /.col-lg-6 -->
</div><!-- /.tab-pane -->
</div><!-- /.tab-content -->
</div><!-- ./ Panel body -->
<div class="panel-footer"> <?php echo _("Information provided by Dnsmasq"); ?></div>
</div><!-- /.panel-primary -->
</div><!-- /.col-lg-12 -->
</div><!-- /.row -->
<?php
}