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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Plugin to use bit.ly URL shortening services.
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Plugin
* @package StatusNet
* @author Craig Andrews <candrews@integralblue.com>
* @author Brion Vibber <brion@status.net>
* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
* @copyright 2010 StatusNet, Inc http://status.net/
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
require_once INSTALLDIR.'/plugins/UrlShortener/UrlShortenerPlugin.php';
class BitlyUrlPlugin extends UrlShortenerPlugin
{
public $shortenerName = 'bit.ly';
public $serviceUrl = 'http://bit.ly/api?method=shorten&version=2.0.1&longUrl=%s';
public $login;
public $apiKey;
function onInitializePlugin(){
parent::onInitializePlugin();
if(!isset($this->serviceUrl)){
throw new Exception(_m("You must specify a serviceUrl for bit.ly shortening."));
}
if(!isset($this->login)){
throw new Exception(_m("You must specify a login name for bit.ly shortening."));
}
if(!isset($this->login)){
throw new Exception(_m("You must specify an API key for bit.ly shortening."));
}
}
/**
* Short a URL
* @param url
* @return string shortened version of the url, or null if URL shortening failed
*/
protected function shorten($url) {
$response = $this->query($url);
if ($this->isOk($url, $response)) {
return $this->decode($url, $response->getBody());
} else {
return null;
}
}
/**
* Inject API key into query before sending out...
*
* @param string $url
* @return HTTPResponse
*/
protected function query($url)
{
// http://code.google.com/p/bitly-api/wiki/ApiDocumentation#/shorten
$params = http_build_query(array(
'login' => $this->login,
'apiKey' => $this->apiKey), '', '&');
$serviceUrl = sprintf($this->serviceUrl, $url) . '&' . $params;
$request = HTTPClient::start();
return $request->get($serviceUrl);
}
/**
* JSON decode for API result
*/
protected function decode($url, $body)
{
$json = json_decode($body, true);
return $json['results'][$url]['shortUrl'];
}
/**
* JSON decode for API result
*/
protected function isOk($url, $response)
{
$code = 'unknown';
$msg = '';
if ($response->isOk()) {
$body = $response->getBody();
common_log(LOG_INFO, $body);
$json = json_decode($body, true);
if ($json['statusCode'] == 'OK') {
$data = $json['results'][$url];
if (isset($data['shortUrl'])) {
return true;
} else if (isset($data['statusCode']) && $data['statusCode'] == 'ERROR') {
$code = $data['errorCode'];
$msg = $data['errorMessage'];
}
} else if ($json['statusCode'] == 'ERROR') {
$code = $json['errorCode'];
$msg = $json['errorMessage'];
}
common_log(LOG_ERR, "bit.ly returned error $code $msg for $url");
}
return false;
}
function onPluginVersion(&$versions)
{
$versions[] = array('name' => sprintf('BitlyUrl (%s)', $this->shortenerName),
'version' => STATUSNET_VERSION,
'author' => 'Craig Andrews, Brion Vibber',
'homepage' => 'http://status.net/wiki/Plugin:BitlyUrl',
'rawdescription' =>
sprintf(_m('Uses <a href="http://%1$s/">%1$s</a> URL-shortener service.'),
$this->shortenerName));
return true;
}
}
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