Download rapidshare file using rapidshare api in php - php

Question

I am trying to download a rapidshare file using its "download" subroutine as a free user. The following is the code that I use to get response from the subroutine.
function rs_download($params)
{
$url = "http://api.rapidshare.com/cgi-bin/rsapi.cgi?sub=download&fileid=".$params['fileid']."&filename=".$params['filename'];
$reply = #file_get_contents($url);
if(!$reply)
{
return false;
}
$result_arr = array();
$result_keys = array(0=> 'hostname', 1=>'dlauth', 2=>'countdown_time', 3=>'md5hex');
if( preg_match("/DL:(.*)/", $reply, $reply_matches) )
{
$reply_altered = $reply_matches[1];
}
else
{
return false;
}
foreach( explode(',', $reply_altered) as $index => $value )
{
$result_arr[ $result_keys[$index] ] = $value;
}
return $result_arr;
}
For instance; trying to download this...
http://rapidshare.com/files/440817141/AutoRun__live-down.com_Champ.rar
I pass the fileid(440817141) and filename(AutoRun__live-down.com_Champ.rar) to rs_download(...) and I get a response just as rapidshare's api doc says.
The rapidshare api doc (see "sub=download") says call the server hostname with the download authentication string but I couldn't figure out what form the url should take.
Any suggestions?, I tried
$download_url = "http://$the-hostname/$the-dlauth-string/files/$fileid/$filename"
and a couple other variations of the above, nothing worked.
I use curl to download the file, like the following;
$cr = curl_init();
$fp = fopen ("d:/downloaded_files/file1.rar", "w");
// set curl options
$curl_options = array(
CURLOPT_URL => $download_url
,CURLOPT_FILE => $fp
,CURLOPT_HEADER => false
,CURLOPT_CONNECTTIMEOUT => 0
,CURLOPT_FOLLOWLOCATION => true
);
curl_setopt_array($cr, $curl_options);
curl_exec($cr);
curl_close($cr);
fclose($fp);
The above curl code doesn't seem to work, nothing gets downloaded. Probably its the download url that is incorrect.
Also tried this format for the download url:
"http://rs$serverid$shorthost.rapidshare.com/files/$fileid/$filename"
With this curl writes a file entry but that is all it does(writes a 0/1 kb file).
Here is the code that I use to get the serverid, shorthost, among a few other values from rapidshare.
function rs_checkfile($params)
{
$url = "http://api.rapidshare.com/cgi-bin/rsapi.cgi?sub=checkfiles_v1&files=".$params['fileids']."&filenames=".$params['filenames'];
// the response from rapishare would a string something like:
// 440817141,AutoRun__live-down.com_Champ.rar,47768,20,1,l3,0
$reply = #file_get_contents($url);
if(!$reply)
{
return false;
}
$result_arr = array();
$result_keys = array(0=> 'file_id', 1=>'file_name', 2=>'file_size', 3=>'server_id', 4=>'file_status', 5=>'short_host'
, 6=>'md5');
foreach( explode(',', $reply) as $index => $value )
{
$result_arr[ $result_keys[$index] ] = $value;
}
return $result_arr;
}
rs_checkfile(...) takes comma seperated fileids and filenames(no commas if calling for a single file)
Thanks in advance for any suggestions.

Answer 1

You start by requesting ?sub=download&fileid=X&filename=Y, and it returns $hostname,$dlauth,$countdown,$md5hex.. since you're a free user you have to delay for $countdown seconds, and then call ?sub=download&fileid=X&filename=Y&dlauth=Z to perform the download.
There's a working implementation in python here that would probably answer any of your other questions.