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raspap-webgui/includes/hostapd.php

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<?php
include_once( 'includes/status_messages.php' );
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/**
*
*
*/
function DisplayHostAPDConfig(){
$status = new StatusMessages();
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$arrConfig = array();
$arrChannel = array('a','b','g');
$arrSecurity = array( 1 => 'WPA', 2 => 'WPA2',3=> 'WPA+WPA2');
$arrEncType = array('TKIP' => 'TKIP', 'CCMP' => 'CCMP', 'TKIP CCMP' => 'TKIP+CCMP');
exec("ip -o link show | awk -F': ' '{print $2}'", $interfaces);
if( isset($_POST['SaveHostAPDSettings']) ) {
if (CSRFValidate()) {
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SaveHostAPDConfig($arrSecurity, $arrEncType, $arrChannel, $interfaces, $status);
} else {
error_log('CSRF violation');
}
} elseif( isset($_POST['StartHotspot']) ) {
if (CSRFValidate()) {
$status->addMessage('Attempting to start hotspot', 'info');
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exec( 'sudo service hostapd start', $return );
foreach( $return as $line ) {
$status->addMessage($line, 'info');
}
} else {
error_log('CSRF violation');
}
} elseif( isset($_POST['StopHotspot']) ) {
if (CSRFValidate()) {
$status->addMessage('Attempting to stop hotspot', 'info');
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exec( 'sudo service hostapd stop', $return );
foreach( $return as $line ) {
$status->addMessage($line, 'info');
}
} else {
error_log('CSRF violation');
}
}
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exec( 'cat '. RASPI_HOSTAPD_CONFIG, $return );
exec( 'pidof hostapd | wc -l', $hostapdstatus);
if( $hostapdstatus[0] == 0 ) {
$status->addMessage('HostAPD is not running', 'warning');
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} else {
$status->addMessage('HostAPD is running', 'success');
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}
foreach( $return as $a ) {
if( $a[0] != "#" ) {
$arrLine = explode( "=",$a) ;
$arrConfig[$arrLine[0]]=$arrLine[1];
}
};
?>
<div class="row">
<div class="col-lg-12">
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<div class="panel panel-primary">
<div class="panel-heading"><i class="fa fa-dot-circle-o fa-fw"></i> Configure hotspot</div>
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<!-- /.panel-heading -->
<div class="panel-body">
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<form role="form" action="?page=hostapd_conf" method="POST">
<!-- Nav tabs -->
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<ul class="nav nav-tabs">
<li class="active"><a href="#basic" data-toggle="tab">Basic</a></li>
<li><a href="#security" data-toggle="tab">Security</a></li>
<li><a href="#advanced" data-toggle="tab">Advanced</a></li>
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</ul>
<!-- Tab panes -->
<div class="tab-content">
<p><?php $status->showMessages(); ?></p>
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<div class="tab-pane fade in active" id="basic">
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<h4>Basic settings</h4>
<?php CSRFToken() ?>
<div class="row">
<div class="form-group col-md-4">
<label for="code">Interface</label>
<?php
SelectorOptions('interface', $interfaces, $arrConfig['interface']);
?>
</div>
</div>
<div class="row">
<div class="form-group col-md-4">
<label for="code">SSID</label>
<input type="text" class="form-control" name="ssid" value="<?php echo $arrConfig['ssid']; ?>" />
</div>
</div>
<div class="row">
<div class="form-group col-md-4">
<label for="code">Wireless Mode</label>
<?php SelectorOptions('hw_mode', $arrChannel, $arrConfig['hw_mode']); ?>
</div>
</div>
<div class="row">
<div class="form-group col-md-4">
<label for="code">Channel</label>
<?php SelectorOptions('channel', range(1, 14), intval($arrConfig['channel'])) ?>
</div>
</div>
</div>
<div class="tab-pane fade" id="security">
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<h4>Security settings</h4>
<div class="row">
<div class="form-group col-md-4">
<label for="code">Security type</label>
<?php SelectorOptions('wpa', $arrSecurity, $arrConfig['wpa']); ?>
</div>
</div>
<div class="row">
<div class="form-group col-md-4">
<label for="code">Encryption Type</label>
<?php SelectorOptions('wpa_pairwise', $arrEncType, $arrConfig['wpa_pairwise']); ?>
</div>
</div>
<div class="row">
<div class="form-group col-md-4">
<label for="code">PSK</label>
<input type="text" class="form-control" name="wpa_passphrase" value="<?php echo $arrConfig['wpa_passphrase'] ?>" />
</div>
</div>
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</div>
<div class="tab-pane fade" id="advanced">
<h4>Advanced settings</h4>
<div class="row">
<div class="form-group col-md-4">
<label for="code">Country Code</label>
<input type="text" class="form-control" name="country_code" value="<?php echo $arrConfig['country_code'] ?>" />
</div>
</div>
</div><!-- ./ Panel body -->
<input type="submit" class="btn btn-outline btn-primary" name="SaveHostAPDSettings" value="Save settings" />
<?php
if($hostapdstatus[0] == 0) {
echo '<input type="submit" class="btn btn-success" name="StartHotspot" value="Start hotspot" />';
} else {
echo '<input type="submit" class="btn btn-warning" name="StopHotspot" value="Stop hotspot" />';
};
?>
</form>
</div><!-- /.panel-primary -->
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<div class="panel-footer"> Information provided by hostapd</div>
</div><!-- /.col-lg-12 -->
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</div><!-- /.row -->
<?php
}
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function SaveHostAPDConfig($wpa_array, $enc_types, $modes, $interfaces, $status) {
// It should not be possible to send bad data for these fields so clearly
// someone is up to something if they fail. Fail silently.
if (!(array_key_exists($_POST['wpa'], $wpa_array) && array_key_exists($_POST['wpa_pairwise'], $enc_types) && in_array($_POST['hw_mode'], $modes))) {
error_log("Attempting to set hostapd config with wpa='".$_POST['wpa']."', wpa_pairwise='".$_POST['wpa_pairwise']."' and hw_mode='".$_POST['hw_mode']."'");
return false;
}
if ((!filter_var($_POST['channel'], FILTER_VALIDATE_INT)) || intval($_POST['channel']) < 1 || intval($_POST['channel']) > 14) {
error_log("Attempting to set channel to '".$_POST['channel']."'");
return false;
}
$good_input = true;
// Verify input
if (strlen($_POST['ssid']) == 0 || strlen($_POST['ssid']) > 32) {
// Not sure of all the restrictions of SSID
$status->addMessage('SSID must be between 1 and 32 characters', 'danger');
$good_input = false;
}
if (strlen($_POST['wpa_passphrase']) < 8 || strlen($_POST['wpa_passphrase']) > 63) {
$status->addMessage('WPA passphrase must be between 8 and 63 characters', 'danger');
$good_input = false;
}
if (! in_array($_POST['interface'], $interfaces)) {
// The user is probably up to something here but it may also be a
// genuine error.
$status->addMessage('Unknown interface '.$_POST['interface'], 'danger');
$good_input = false;
}
if (strlen($_POST['country_code']) != 0 && strlen($_POST['country_code']) != 2) {
$status->addMessage('Country code must be blank or two characters', 'danger');
$good_input = false;
}
if ($good_input) {
if ($tmp_file = fopen('/tmp/hostapddata', 'w')) {
// Fixed values
fwrite($tmp_file, 'driver=nl80211'.PHP_EOL);
fwrite($tmp_file, 'ctrl_interface='.RASPI_HOSTAPD_CTRL_INTERFACE.PHP_EOL);
fwrite($tmp_file, 'ctrl_interface_group=0'.PHP_EOL);
fwrite($tmp_file, 'beacon_int=100'.PHP_EOL);
fwrite($tmp_file, 'auth_algs=1'.PHP_EOL);
fwrite($tmp_file, 'wpa_key_mgmt=WPA-PSK'.PHP_EOL);
fwrite($tmp_file, 'ssid='.$_POST['ssid'].PHP_EOL);
fwrite($tmp_file, 'channel='.$_POST['channel'].PHP_EOL);
fwrite($tmp_file, 'hw_mode='.$_POST['hw_mode'].PHP_EOL);
fwrite($tmp_file, 'wpa_passphrase='.$_POST['wpa_passphrase'].PHP_EOL);
fwrite($tmp_file, 'interface='.$_POST['interface'].PHP_EOL);
fwrite($tmp_file, 'wpa='.$_POST['wpa'].PHP_EOL);
fwrite($tmp_file, 'wpa_pairwise='.$_POST['wpa_pairwise'].PHP_EOL);
fwrite($tmp_file, 'country_code='.$_POST['country_code'].PHP_EOL);
fclose($tmp_file);
system( "sudo cp /tmp/hostapddata " . RASPI_HOSTAPD_CONFIG, $return );
if( $return == 0 ) {
$status->addMessage('Wifi Hotspot settings saved', 'success');
} else {
$status->addMessage('Unable to save wifi hotspot settings', 'danger');
}
} else {
$status->addMessage('Unable to save wifi hotspot settings', 'danger');
return false;
}
}
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return true;
}
?>