/**
* Check the integrity of the package.
*
* @param string $buffer
* @param TcpConnection $connection
* @return int
*/
public static function input($buffer, TcpConnection $connection)
{
// Judge whether the package length exceeds the limit.
if (strlen($buffer) >= TcpConnection::$maxPackageSize) {
$connection->close();
return 0;
}
// Find the position of "\n".
$pos = strpos($buffer, "\n");
// No "\n", packet length is unknown, continue to wait for the data so return 0.
if ($pos === false) {
return 0;
}
// Return the current package length.
return $pos + 1;
}
/**
* Check the integrity of the package.
*
* @param string $recv_buffer
* @param TcpConnection $connection
* @return int
*/
public static function input($recv_buffer, TcpConnection $connection)
{
if (!strpos($recv_buffer, "\r\n\r\n")) {
// Judge whether the package length exceeds the limit.
if (strlen($recv_buffer) >= TcpConnection::$maxPackageSize) {
$connection->close();
return 0;
}
return 0;
}
list($header, ) = explode("\r\n\r\n", $recv_buffer, 2);
if (0 === strpos($recv_buffer, "POST")) {
// find Content-Length
$match = array();
if (preg_match("/\r\nContent-Length: ?(\\d+)/i", $header, $match)) {
$content_length = $match[1];
return $content_length + strlen($header) + 4;
} else {
return 0;
}
} else {
return strlen($header) + 4;
}
}
