/**
* {@inheritDoc}
*/
public function buildSignature(Request $request, Consumer $consumer, Token $token = null)
{
$signatureBase = $request->getSignatureBaseString();
$parts = [$consumer->secret, null !== $token ? $token->secret : ""];
$parts = Util::urlencodeRfc3986($parts);
$key = implode('&', $parts);
return base64_encode(hash_hmac('sha1', $signatureBase, $key, true));
}
/**
* pretty much a helper function to set up the request
*
* @param Consumer $consumer
* @param Token $token
* @param string $httpMethod
* @param string $httpUrl
* @param array $parameters
*
* @return Request
*/
public static function fromConsumerAndToken(Consumer $consumer, Token $token = null, $httpMethod, $httpUrl, array $parameters = [])
{
$defaults = ["oauth_version" => Request::$version, "oauth_nonce" => Request::generateNonce(), "oauth_timestamp" => time(), "oauth_consumer_key" => $consumer->key];
if (null !== $token) {
$defaults['oauth_token'] = $token->key;
}
$parameters = array_merge($defaults, $parameters);
return new Request($httpMethod, $httpUrl, $parameters);
}
/**
* Format and sign an OAuth / API request
*
* @param string $url
* @param string $method
* @param array $parameters
*
* @return string
* @throws TwitterOAuthException
*/
private function oAuthRequest($url, $method, array $parameters)
{
$request = Request::fromConsumerAndToken($this->consumer, $this->token, $method, $url, $parameters);
if (array_key_exists('oauth_callback', $parameters)) {
// Twitter doesn't like oauth_callback as a parameter.
unset($parameters['oauth_callback']);
}
if ($this->bearer === null) {
$request->signRequest($this->signatureMethod, $this->consumer, $this->token);
$authorization = $request->toHeader();
} else {
$authorization = 'Authorization: Bearer ' . $this->bearer;
}
return $this->request($request->getNormalizedHttpUrl(), $method, $authorization, $parameters);
}