function build_http_query($params)
{
if (!$params) {
return '';
}
// Urlencode both keys and values
$keys = ns_OAuthUtil::urlencode_rfc3986(array_keys($params));
$values = ns_OAuthUtil::urlencode_rfc3986(array_values($params));
$params = array_combine($keys, $values);
// Parameters are sorted by name, using lexicographical byte value ordering.
// Ref: Spec: 9.1.1 (1)
uksort($params, 'strcmp');
$pairs = array();
foreach ($params as $parameter => $value) {
if (is_array($value)) {
// If two or more parameters share the same name, they are sorted by their value
// Ref: Spec: 9.1.1 (1)
natsort($value);
foreach ($value as $duplicate_value) {
$pairs[] = $parameter . '=' . $duplicate_value;
}
} else {
$pairs[] = $parameter . '=' . $value;
}
}
// For each parameter, the name is separated from the corresponding value by an '=' character (ASCII code 61)
// Each name-value pair is separated by an '&' character (ASCII code 38)
return implode('&', $pairs);
}
/**
* Exchange the request token and secret for an access token and
* secret, to sign API calls.
*
* @return array array("oauth_token" => the access token,
* "oauth_token_secret" => the access secret)
*/
function getAccessToken($oauth_verifier = FALSE, $oauth_token = false, $useType = 'string')
{
$parameters = array();
if (!empty($oauth_verifier)) {
$parameters['oauth_verifier'] = $oauth_verifier;
}
$request = $this->oAuthRequest($this->accessTokenURL(), 'GET', $parameters, $useType);
$token = ns_OAuthUtil::parse_parameters($request);
if (isset($token['oauth_token']) && isset($token['oauth_token_secret'])) {
$this->token = new ns_OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
}
return $token;
}