public function build_signature($request, $consumer, $token)
{
$base_string = $request->get_signature_base_string();
$request->base_string = $base_string;
$key_parts = array($consumer->secret, $token ? $token->secret : "");
$key_parts = OAuthUtil::urlencode_rfc3986($key_parts);
$key = implode('&', $key_parts);
return base64_encode(hash_hmac('sha1', $base_string, $key, true));
}
public function build_signature($request, $consumer, $token)
{
$sig = array(OAuthUtil::urlencode_rfc3986($consumer->secret));
if ($token) {
array_push($sig, OAuthUtil::urlencode_rfc3986($token->secret));
} else {
array_push($sig, '');
}
$raw = implode("&", $sig);
// for debug purposes
$request->base_string = $raw;
return OAuthUtil::urlencode_rfc3986($raw);
}
public static function build_http_query($params)
{
if (!$params) {
return '';
}
// Urlencode both keys and values
$keys = OAuthUtil::urlencode_rfc3986(array_keys($params));
$values = OAuthUtil::urlencode_rfc3986(array_values($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);
}
/**
* builds the Authorization: header
*/
public function to_header()
{
$out = 'Authorization: OAuth realm=""';
$total = array();
foreach ($this->parameters as $k => $v) {
if (substr($k, 0, 5) != "oauth") {
continue;
}
if (is_array($v)) {
throw new OAuthException('Arrays not supported in headers');
}
$out .= ',' . OAuthUtil::urlencode_rfc3986($k) . '="' . OAuthUtil::urlencode_rfc3986($v) . '"';
}
return $out;
}
/**
* generates the basic string serialization of a token that a server
* would respond to request_token and access_token calls with
*/
function to_string()
{
return "oauth_token=" . OAuthUtil::urlencode_rfc3986($this->key) . "&oauth_token_secret=" . OAuthUtil::urlencode_rfc3986($this->secret);
}
