function sendHeaders()
{
$lastModifiedTime = filemtime($this->fileNameToServe);
$fileSize = filesize($this->fileNameToServe);
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $lastModifiedTime) {
header('HTTP/1.0 304 Not Modified');
exit;
}
header('Content-Length: ' . $fileSize);
header('Last-Modified: ' . \getLastModifiedTime($lastModifiedTime), true);
foreach ($this->headers as $type => $value) {
header("{$type}: {$value}");
}
}
//Hand off based on the paragmeters.
switch ($parameters[1]) {
case "setupEnvironment":
echo setupEnvironment($input);
break;
case "newCommands":
echo newCommands($input);
break;
case "clearCommands":
echo clearCommands();
break;
case "getCommands":
echo getCommands();
break;
case "getLastModifiedTime":
echo getLastModifiedTime();
break;
case "getPhysicalGridSize":
echo getPhysicalGridSize();
break;
case "getLogicalGridSize":
echo getLogicalGridSize();
break;
case "getOrigin":
echo getOrigin();
break;
case "setOrigin":
echo setOrigin($input);
break;
case "getNotesForKeys":
echo getNotesForKeys();
