public function build_signature($parameters, $request_url, $method = 'GET')
{
$parts = array($method, $this->get_normalized_http_url($request_url), $this->get_signable_parameters($parameters));
$parts = twpOAuthUtil::urlencode_rfc3986($parts);
$base_string = implode('&', $parts);
$token_secret = '';
if (!empty($this->_token['oauth_token_secret'])) {
$token_secret = $this->_token['oauth_token_secret'];
}
$key_parts = array($this->_consumer_secret, $token_secret);
$key_parts = twpOAuthUtil::urlencode_rfc3986($key_parts);
$key = implode('&', $key_parts);
return base64_encode(hash_hmac('sha1', $base_string, $key, true));
}
public static function build_http_query($params)
{
if (!$params) {
return '';
}
// Urlencode both keys and values
$keys = twpOAuthUtil::urlencode_rfc3986(array_keys($params));
$values = twpOAuthUtil::urlencode_rfc3986(array_values($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);
}