/**
* Request a request token from the site belonging to consumer_key
*
* @param string consumer_key
* @param int usr_id
* @param array params (optional) extra arguments for when requesting the request token
* @param string method (optional) change the method of the request, defaults to POST (as it should be)
* @param array options (optional) options like name and token_ttl
* @param array curl_options optional extra options for curl request
* @exception OAuthException2 when no key could be fetched
* @exception OAuthException2 when no server with consumer_key registered
* @return array (authorize_uri, token)
*/
static function requestRequestToken($consumer_key, $usr_id, $params = null, $method = 'POST', $options = array(), $curl_options = array(), $oauth_as_header = true)
{
OAuthRequestLogger::start();
if (isset($options['token_ttl']) && is_numeric($options['token_ttl'])) {
$params['xoauth_token_ttl'] = intval($options['token_ttl']);
}
$store = OAuthStore::instance();
$r = $store->getServer($consumer_key, $usr_id);
$uri = $r['request_token_uri'];
$oauth = new OAuthRequester($uri, $method, $params);
$oauth->setOAuthAsHeaders($oauth_as_header);
$oauth->sign($usr_id, $r, '', 'requestToken');
$text = $oauth->curl_raw($curl_options);
if (empty($text)) {
throw new OAuthException2('No answer from the server "' . $uri . '" while requesting a request token');
}
$data = $oauth->curl_parse($text);
if ($data['code'] != 200 && $data['code'] != 201) {
throw new OAuthException2('Unexpected result from the server "' . $uri . '" (' . $data['code'] . ') while requesting a request token');
}
$token = array();
$params = explode('&', $data['body']);
foreach ($params as $p) {
@(list($name, $value) = explode('=', $p, 2));
$token[$name] = $oauth->urldecode($value);
}
if (!empty($token['oauth_token']) && !empty($token['oauth_token_secret'])) {
$opts = array();
if (isset($options['name'])) {
$opts['name'] = $options['name'];
}
if (isset($token['xoauth_token_ttl'])) {
$opts['token_ttl'] = $token['xoauth_token_ttl'];
}
$store->addServerToken($consumer_key, 'request', $token['oauth_token'], $token['oauth_token_secret'], $usr_id, $opts);
} else {
throw new OAuthException2('The server "' . $uri . '" did not return the oauth_token or the oauth_token_secret');
}
OAuthRequestLogger::flush();
// Now we can direct a browser to the authorize_uri
return array('authorize_uri' => $r['authorize_uri'], 'token' => $token['oauth_token']);
}
