I'm using PHP function virtual() for sending files by Apache 2.2 (it works faster than readfile()) and I can check user access permissions.
But is there any way to add continuous download support, with HTTP_RANGE?
I have tried things like this
if(isset($_SERVER['HTTP_RANGE'])) {
list($a, $range)=explode("=",$_SERVER['HTTP_RANGE']);
str_replace($range, "-", $range);
$size2=$size-1;
$new_length=$size-$range;
header("HTTP/1.1 206 Partial Content");
header("Content-Length: $new_length");
header("Content-Range: bytes $range$size2/$size");
apache_setenv('HTTP_RANGE', $_SERVER['HTTP_RANGE']);
} else {
$size2=$size-1;
header("Content-Range: bytes 0-$size2/$size");
header("Content-Length: ".$size);
}
So web-client was downloaded files like if HTTP_RANGE works, but in real Apache just sends always the same file-ranges like: if client ask 4000-6000 bytes, Apache sends 0-2000 and etc, so files was broken.
I think that there is some way to do it using apache_setenv, but can't find in Google any suggestion about that.
Try to use xfilesend module for Apache.