Information of Flash sent out via URLLoader
for PHP platform, server may receive these information in $_SERVER array. it may simple to check out the source is valid and come from *.swf file
‘HTTP_REFERER’ => ‘file:///Z|/somewhere|happypage.swf’,
‘HTTP_X_FLASH_VERSION’ => ’9,0,45,0′,
‘HTTP_USER_AGENT’ => ‘Shockwave Flash’,
