88 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			88 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * StatusNet, the distributed open-source microblogging tool
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 *
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 * StatusNet-only extensions to the Twitter-like API
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 *
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 * PHP version 5
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 *
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 * LICENCE: This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU Affero General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU Affero General Public License for more details.
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 *
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 * You should have received a copy of the GNU Affero General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
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 * @package   StatusNet
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 * @author    Brion Vibber <brion@status.net>
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 * @copyright 2010 StatusNet, Inc.
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 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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 * @link      http://status.net/
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 */
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if (!defined('STATUSNET') && !defined('LACONICA')) {
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    exit(1);
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}
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/**
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 * Oembed proxy implementation
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 *
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 * This class provides an interface for our JS-side code to pull info on
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 * links from other sites, using either native oEmbed, our own custom
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 * handlers, or the oohEmbed.com offsite proxy service as configured.
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 *
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 * @category  oEmbed
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 * @package   StatusNet
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 * @author    Brion Vibber <brion@status.net>
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 * @copyright 2010 StatusNet, Inc.
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 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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 * @link      http://status.net/
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 */
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class OembedproxyAction extends OembedAction
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{
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    function handle($args)
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    {
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        // Trigger short error responses; not a human-readable web page.
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        StatusNet::setApi(true);
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        // We're not a general oEmbed proxy service; limit to valid sessions.
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        $token = $this->trimmed('token');
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        if (!$token || $token != common_session_token()) {
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            $this->clientError(_m('There was a problem with your session token. '.
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                                 'Try again, please.'));
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        }
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        $format = $this->arg('format');
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        if ($format && $format != 'json') {
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            throw new ClientException('Invalid format; only JSON supported.');
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        }
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        $url = $this->arg('url');
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        if (!common_valid_http_url($url)) {
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            throw new ClientException('Invalid URL.');
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        }
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        $params = array();
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        if ($this->arg('maxwidth')) {
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            $params['maxwidth'] = $this->arg('maxwidth');
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        }
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        if ($this->arg('maxheight')) {
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            $params['maxheight'] = $this->arg('maxheight');
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        }
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        $data = oEmbedHelper::getObject($url, $params);
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        $this->init_document('json');
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        print json_encode($data);
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    }
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}
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