$val) {
if (is_array($val)) {
$res[] = "[$key]";
foreach ($val as $skey => $sval) {
$res[] = "$skey = ".(is_numeric($sval) ? $sval : '"'.$sval.'"');
}
} else {
$res[] = "$key = ".(is_numeric($val) ? $val : '"'.$val.'"');
}
}
if (safefilerewrite($file, implode("\r\n", $res))) {
return true;
} else {
return false;
}
}
function safefilerewrite($fileName, $dataToSave)
{
if ($fp = fopen($fileName, 'w')) {
$startTime = microtime(true);
do {
$canWrite = flock($fp, LOCK_EX);
// If lock not obtained sleep for 0 - 100 milliseconds, to avoid collision and CPU load
if (!$canWrite) {
usleep(round(rand(0, 100)*1000));
}
} while ((!$canWrite)and((microtime(true)-$startTime) < 5));
//file was locked so now we can store information
if ($canWrite) {
fwrite($fp, $dataToSave);
flock($fp, LOCK_UN);
}
fclose($fp);
return true;
} else {
return false;
}
}
/**
*
* Add CSRF Token to form
*
*/
function CSRFToken()
{
?>
' , PHP_EOL;
foreach ($options as $opt => $label) {
$select = '';
$key = isAssoc($options) ? $opt : $label;
if ($key == $selected) {
$select = ' selected="selected"';
}
echo '' , PHP_EOL;
}
echo '' , PHP_EOL;
}
/**
*
* @param string $input
* @param string $string
* @param int $offset
* @param string $separator
* @return $string
*/
function GetDistString($input, $string, $offset, $separator)
{
$string = substr($input, strpos($input, $string)+$offset, strpos(substr($input, strpos($input, $string)+$offset), $separator));
return $string;
}
/**
*
* @param array $arrConfig
* @return $config
*/
function ParseConfig($arrConfig)
{
$config = array();
foreach ($arrConfig as $line) {
$line = trim($line);
if ($line != "" && $line[0] != "#") {
$arrLine = explode("=", $line);
$config[$arrLine[0]] = ( count($arrLine) > 1 ? $arrLine[1] : true );
}
}
return $config;
}
/**
*
* @param string $freq
* @return $channel
*/
function ConvertToChannel($freq)
{
if ($freq >= 2412 && $freq <= 2484) {
$channel = ($freq - 2407)/5;
} elseif ($freq >= 4915 && $freq <= 4980) {
$channel = ($freq - 4910)/5 + 182;
} elseif ($freq >= 5035 && $freq <= 5865) {
$channel = ($freq - 5030)/5 + 6;
} else {
$channel = -1;
}
if ($channel >= 1 && $channel <= 196) {
return $channel;
} else {
return 'Invalid Channel';
}
}
/**
* Converts WPA security string to readable format
* @param string $security
* @return string
*/
function ConvertToSecurity($security)
{
$options = array();
preg_match_all('/\[([^\]]+)\]/s', $security, $matches);
foreach ($matches[1] as $match) {
if (preg_match('/^(WPA\d?)/', $match, $protocol_match)) {
$protocol = $protocol_match[1];
$matchArr = explode('-', $match);
if (count($matchArr) > 2) {
$options[] = htmlspecialchars($protocol . ' ('. $matchArr[2] .')', ENT_QUOTES);
} else {
$options[] = htmlspecialchars($protocol, ENT_QUOTES);
}
}
}
if (count($options) === 0) {
// This could also be WEP but wpa_supplicant doesn't have a way to determine
// this.
// And you shouldn't be using WEP these days anyway.
return 'Open';
} else {
return implode('
', $options);
}
}
/**
*
*
*/
function DisplayOpenVPNConfig()
{
exec('cat '. RASPI_OPENVPN_CLIENT_CONFIG, $returnClient);
exec('cat '. RASPI_OPENVPN_SERVER_CONFIG, $returnServer);
exec('pidof openvpn | wc -l', $openvpnstatus);
if ($openvpnstatus[0] == 0) {
$status = '