Hi, I'm experimenting with the api, I'm interested in create a bot to upload images. This is my code (I'm using the Snoopy.php class):

# get token
 $getToken = array(
 'action' => 'query',
 'prop' => 'info',
 'intoken' => 'edit',
 'titles' => 'Wiki1',
 'format' => 'php');

 echo " ";
 if(!$snoopy->submit($api_url, $getToken))
 echo "TOKEN DENIED";
 else
 echo "GOT TOKEN";
 echo " ";

 $array_ = unserialize($snoopy->results);

$myFile = fopen("/var/www/dib.jpg","r");
 $returned = fread($myFile, 500);
 while($devuelto != false) {
 $fileContent .= $returned;
 $returned = fread($myFile, 500);
 }

#upload
$uploadVars['format'] = 'php';
$uploadVars['action'] = 'upload';
$uploadVars['filename'] = 'wikip.png';
$uploadVars['url'] = 'http://upload.wikimedia.org/wikipedia/en/b/bc/Wiki.png';
$uploadVars['file'] = $fileContent;
$uploadVars['token'] = $array_["query"]["pages"][key($array_["query"]["pages"])]["edittoken"];

$snoopy->set_submit_multipart();
 echo " ";
 if(!$snoopy->submit($api_url, $uploadVars))
 echo "UPLOAD DENIED";
 else
 echo "UPLOAD OK";
 echo " ";

$array_ = unserialize($snoopy->results);
 echo " ----------- ";
 print_r($array_);
 echo " ..................... ";
 echo $snoopy->results;
 echo " -----------";

The execution of this code produce the output bellow:
GOT TOKEN

UPLOAD OK

-----------
.....................
-----------

It's supposed I should receive something like this in the last step:

<api>
  <upload result="Success" filename="Test.txt">

    <imageinfo timestamp="2000-01-01T00:00:00Z" user="127.0.0.1" anon="" size="1000" width="0" height="0" url="http://localhost/images/3/35/Test.txt" descriptionurl="http://localhost/index.php/File:Test.txt" comment="" sha1="b8f32ebbf9512d8641d7e72c86614c2cee3e8108" metadata="" mime="text/plain" bitdepth="0" />

  </upload>
</api>

In fact, nothing really happen, no file is uploaded (the file exists).

Some useful information:
PHP 5.3.3
Ubuntu10.10
mediawiki1.16.0