public static function decodeHeaderEncodedArray($headerValue){
$valuesArr = array();
$pairs = array();
$name = '';
$value = '';
if(is_string($headerValue)){
$valuesArr = explode(',',$headerValue);
foreach($valuesArr as $pair){
if(strpos($pair,'=')){
//this param has a key value pair
$pair = trim($pair);
list($name, $value) = explode('=', $param, 2);
}else{
//this is an empty param and only has a name
$name = $pair;
$value = '';
}
//lets push it to the array if it has a name
if(!empty($name)){
//we may need to validate the $name, not all returnable chars may be valid
$name = OAuthUtil::urldecodeRFC3986($name);
$value = OAuthUtil::urldecodeRFC3986($value);
//we should be able to set value to an empty string ''
$pairs[$name] = $value;
}
}//end foreach
return $pairs;//returns array
}
return null;//was unable to parse
}
public static function decodeForm($form)
{
$parameters = array();
$explodedForm = explode("&", $form);
foreach ($explodedForm as $params) {
$value = explode("=", $params);
if (!empty($value[0]) && !empty($value[1])) {
$parameters[OAuthUtil::urldecodeRFC3986($value[0])] = OAuthUtil::urldecodeRFC3986($value[1]);
}
}
return $parameters;
}
/**
* Obtains a request token from the specified provider.
*
* @param apiCache $cache cache class to use (file,apc,memcache,mysql)
*/
public function obtainRequestToken($callbackUrl, $uid)
{
$callbackParams = (strpos($_SERVER['REQUEST_URI'], '?') !== false ? '&' : '?') . 'uid=' . urlencode($uid);
$ret = $this->requestRequestToken($callbackUrl . $callbackParams);
$matches = array();
preg_match('/oauth_token=(.*)&oauth_token_secret=(.*)&oauth_callback_confirmed=(.*)/', $ret, $matches);
if (!is_array($matches) || count($matches) != 4) {
throw new apiAuthException("Error retrieving request key ({$ret})");
}
return new OAuthToken(OAuthUtil::urldecodeRFC3986($matches[1]), OAuthUtil::urldecodeRFC3986($matches[2]));
}
/**
* Get honest-to-goodness user data.
*/
private function fetchData()
{
try {
$msgParams = OAuthUtil::isFormEncoded($this->realRequest->getContentType()) ? OAuthUtil::urldecodeRFC3986($this->realRequest->getPostBody()) : array();
$method = $this->realRequest->getMethod();
$msgParams[self::$XOAUTH_APP_URL] = $this->authToken->getAppUrl();
// Build and sign the message.
$oauthRequest = $this->newRequestMessageMethod($method, $this->realRequest->getUrl(), $msgParams);
$rcr = $this->createRemoteContentRequest($this->filterOAuthParams($oauthRequest), $this->realRequest->getMethod(), $this->realRequest->getUrl(), $this->realRequest->getHeaders(), $this->realRequest->getContentType(), $this->realRequest->getPostBody(), $this->realRequest->getOptions());
$content = $this->getNextFetcher()->fetchRequest($rcr);
//TODO is there a better way to detect an SP error?
$statusCode = $content->getHttpCode();
if ($statusCode >= 400 && $statusCode < 500) {
$message = $this->parseAuthHeader(null, $content);
if ($message->get_parameter(OAuth::$OAUTH_PROBLEM) != null) {
throw new OAuthProtocolException($message);
}
}
// Track metadata on the response
$this->addResponseMetadata();
return $content;
} catch (Exception $e) {
throw new GadgetException("INTERNAL SERVER ERROR: " . $e);
}
}
