Use drupal_http_request instead of file_get_contents to make it work with webservers behind proxy

I was testing this module but because i'm behind a proxy it's not possible for me to use the "file_get_contents" function. I've modified my drupal such that drupal_http_request functions work with my proxy (http://drupal.org/node/7881)

I think it's good practice to use the drupal_http_request function instead of the standard php file_get_contents feature so I modified the stock api module to work with the drupal_http_request function.

I took the 5.x-1.0 version from 2007-Jun-02. And this is my modification:

line 102

$contents = @file_get_contents($url);
  if ($contents) {
    if ($data = explode(',', str_replace('"', '', $contents))) {
      $data = array_map('trim', $data);
      return $data;
    }
  }

becomes:

  $contents = drupal_http_request($url);
  if ($contents) {
    if ($data = explode(',', str_replace('"', '', $contents->data))) {
      $data = array_map('trim', $data);
      return $data;
    }
  }