$val) {
if(is_array($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 = '