Topic awaiting preservation: php, getimagesize(http//...) with allow_url_fopen OFF

hi, i was wondering if there is a possibility to do a php->getimagesize of an image on another machine, but with the allow_url_fopen set to OFF. (Dreamhost configuration)

my idea is to use php->curl but i had no success so far.

any ideas?

ok, i just found a solution myself:

$ch = curl_init("http://www.someadress/img.gif");
$filename="/somewriteablepath/test/yxc";
$fp = fopen($filename, "w");

curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_exec($ch);
curl_close($ch);

fclose($fp);


print_r(getimagesize($filename));

now... what happens if that script runs multiple times at the same time?

dunno.

can a php-script really run at the same time?

yeah if you get separate requests.

I think his point is to use flock on the filehandle to prevent this from occuring.



.:[ Never resist a perfect moment ]:.

No!
The point is to
a) use tempfiles (php->temp_name() or such...)
a1) chmod the tempfile to 600.
b) Use php->ignore_user_abort (true)
c) delete the tmp file at the end. (perhaps with php->register_shutdown_function()

that way
you're
a) not opening a security hole (replacing your file with a gd buffer overflowing jpeg, then chmoding it 444 so you won't be able to write to it)
b) allowing multiple scripts to run at the same time
c) not blocking all other scripts while the first one's running.

how do i get the file path of the php->tmpfile ? cause php->getimagesize only takes file paths and not file handles.

sorry guys, but i still dont get your point with the multiple scripts running at once. this piece of code exists in only one php file, and after the temp file has been read with php->getimagesize i dont need it anymore, so it can be overwritten the next time the script runs.