/**
* {@inheritdoc}
* @param \Zeflasher\OAuth\Provider\OAuthRequest $request
* @param string $consumer_secret
* @param string $token_secret
* @return string
*/
public function build_signature($request, $consumer_secret, $token_secret = '')
{
$base_string = $request->get_signature_base_string();
$request->base_string = $base_string;
$key_parts = array( $consumer_secret, $token_secret );
$key_parts = \Zeflasher\OAuth\OAuthUtil::urlencode_rfc3986($key_parts);
$key = implode('&', $key_parts);
return base64_encode(hash_hmac('sha1', $base_string, $key, true));
}
/**
* Builds the Authorization header
*
* @param string|null $realm
* @return string
* @throws \Zeflasher\OAuth\OAuthException
*/
public function to_header($realm=null)
{
$first = true;
if($realm)
{
$out = 'Authorization: OAuth realm="' . \Zeflasher\OAuth\OAuthUtil::urlencode_rfc3986($realm) . '"';
$first = false;
}
else
{
$out = 'Authorization: OAuth';
}
foreach ($this->_parameters as $k => $v)
{
if (substr($k, 0, 5) != "oauth")
{
continue;
}
if (is_array($v))
{
throw new \Zeflasher\OAuth\OAuthException('Arrays not supported in headers');
}
$out .= ($first) ? ' ' : ',';
$out .= \Zeflasher\OAuth\OAuthUtil::urlencode_rfc3986($k) . '="'
. \Zeflasher\OAuth\OAuthUtil::urlencode_rfc3986($v)
. '"';
$first = false;
}
return $out;
}
/**
* The body request parameters (excluded oauth), sorted and concatenated into a normalized string.
* @return string
*/
public function get_query_parameters()
{
// Grab all parameters
$params = array_merge($this->_parameters);
foreach ($params as $key => $image)
{
if (preg_match("/^oauth_.*/", $key, $matches))
{
unset($params[$key]);
}
}
return \Zeflasher\OAuth\OAuthUtil::build_http_query($params);
}
/**
* Get a string with all the parameters alphabetically sorted and URL encoded.
* @return string
*/
public function getSortedEncodedParametersAsString()
{
$params = getSortedParameters();
$paramsCount = count($params);
$encodedString = '';
for ($i = 0; $i < $paramsCount; $i++)
{
$param = $params[$i];
if ($param->key != \Zeflasher\OAuth\OAuthConstants::OAUTH_CLIENT_SIGNATURE)
{
$encodedString .= \Zeflasher\OAuth\OAuthUtil::urlencode_rfc3986($param->key);
$encodedString .= '=';
$encodedString .= \Zeflasher\OAuth\OAuthUtil::urlencode_rfc3986($param->value);
$encodedString .= '&';
}
}
// return them like a querystring
return substr($encodedString, 0, strlen($encodedString)-1);
}
/**
* Similar to parse_str. Returns false if the query string or URL is empty. Because we're not parsing to
* variables but to array key entries, this function will handle ?[]=1&[]=2 "correctly."
*
* @param array $tokens A query string or URL
* @return array Similar to the $_GET formatting that PHP does automagically.
*/
public static function parse_query_string($tokens)
{
$urlVars = array();
foreach ($tokens as $token => $value) {
if (preg_match('/^([^\[]*)(\[.*\])$/', $token, $matches)) {
\Zeflasher\OAuth\OAuthUtil::parse_query_string_array($urlVars, $matches[1], $matches[2], $value);
} else {
$urlVars[urldecode($token)] = urldecode($value);
}
}
return $urlVars;
}
