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cURL HTTP Request is a module intended for developers, as it provides just one API to call: curl_http_request().

The function curl_http_request() is an alternative implementation of Drupal core function drupal_http_request() using
cURL. The function intends to be backwards compatible with drupal_http_request(), by accepting the same parameters
in the same form and by returning the response in the same format.

Proxy support
=============
cURL HTTP request does provide some extra features, though: it allows for requests to be sent via proxy, whether they
are HTTP or HTTPS request. It can even support different proxies for HTTP and HTTPS. Basic proxy authentication via
username and password is also supported as well as an exception list of hostnames not to be contacted via proxy.

Sample proxy settings
=====================
An example of the proxy configuration that you must add to your settings.php in order to have proxy support in your
request via curl_http_request():

/**
 * External access proxy settings:
 *
 * If your site must access the Internet via a web proxy then you can enter
 * the proxy settings here. Currently only basic authentication is supported
 * by using the username and password variables. The 'exceptions' variable
 * is an array of host names to be accessed directly, not via proxy.
 */
$conf['http_proxy'] = array(
  'server' => 'your.proxy.com',
  'port' => '8080',
  'username' => 'user',
  'password' => 'pass',
  'exceptions' => array('localhost'),
);

$conf['https_proxy'] = $conf['http_proxy'];

These system-wide proxy settings can be overriden on a per call basis by setting either the 'http_proxy' or the
'https_proxy' key in the $options array when calling curl_http_request(). Needless to say, those keys must be set to
arrays the same the ones used for the system-wide settings.