hi.. i am really stuck in making remote download script in which user can put a remote file url and it will transfer file from remote server to my server. please please some one help... i really want to make like rapidshare.com remote upload.. means if the browser is closed, downloading will not effect.. any help?? i just totally like to make like rapishare.com remote upload.. please please someone help.. i got headache in making this

Not with PHP scripting.

Originally Posted by chrishirst

Not with PHP scripting.

it is all about php i have the following code to download remote file but not working.. can u tell me where is the problm.. code doesnt give me any error just not downloading files

PHP Code:

<?php
 if (isset($_POST['links']))
{
    $links = explode("\n", $_POST['links']);
       chdir('files');
       foreach ($links as $link){
        $link = escapeshellarg(trim($link));
               shell_exec('wget ' . $link . '&> /dev/null &');
    }
       chdir('..');}
 ?>
<form action="" method="post">
    <textarea name="links" rows="30" cols="60">Links go here</textarea>
    <br /> 
   <input type="submit" value="Upload" />
</form>

You will only get errors back if something fails during the browser communication.

HTTP is a disconnected protocol, which means the client sends a request, the server sends a response and communication is finished. There is no more communication until the client makes another request.

Any message output from wget is routed to nowhere (/dev/null ). What your PHP script does is to start a silent instance of wget, if that fails for any reason you will never know.

Wow thats an awesomely unsecure script there!

Also note that the wget will run as the user whos run it, In this case, Probably apache.

So unless apache has a user folder /home/apache/ then files may not be able to download as theres no where to put it.

Maybe add something to the wget to force files to got a directory..

Oh and DONT allow the downloads to goto your http directory..
They could upload a php file, then another shell script and call the php file that would then call the shell script using the same method you used to call wget...

You could leave the server wide open for a major hack.., Well i say could.. I mean you will.

ONE thing you could possibly do is add the links to a database, Then have a perl script or shell script that executes every 1 minute through cron.

That script could look at the links, Verify they are safe file formats and download them every one minute, Marking downloaded ones as it goes along..

Originally Posted by lynxus

ONE thing you could possibly do is add the links to a database, Then have a perl script or shell script that executes every 1 minute through cron.

That script could look at the links, Verify they are safe file formats and download them every one minute, Marking downloaded ones as it goes along..

i have add a url of a remote image in database then what will i do? can you help me in making a script?? currently i have no idea.. i can add a link in database and also call from the database but what next?

I'd think you could use an FTP connection to their computer, just ask them to enter their data, but it would have to be INCREDIBLY secure and I'm not even sure if that's possible...?