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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* StatusNet-only extensions to the Twitter-like API
*
* 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 Twitter
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2008 StatusNet, Inc.
* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
* @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') && !defined('LACONICA')) {
exit(1);
}
/**
* Oembed provider implementation
*
* This class handles all /main/oembed(.xml|.json)/ requests.
*
* @category oEmbed
* @package StatusNet
* @author Craig Andrews <candrews@integralblue.com>
* @copyright 2008 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class OembedAction extends Action
{
function handle($args)
{
common_debug("in oembed api action");
$url = $args['url'];
if( substr(strtolower($url),0,strlen(common_root_url())) == strtolower(common_root_url()) ){
$path = substr($url,strlen(common_root_url()));
$r = Router::get();
$proxy_args = $r->map($path);
if (!$proxy_args) {
$this->serverError(_("$path not found."), 404);
}
$oembed=array();
$oembed['version']='1.0';
$oembed['provider_name']=common_config('site', 'name');
$oembed['provider_url']=common_root_url();
switch($proxy_args['action']){
case 'shownotice':
$oembed['type']='link';
$id = $proxy_args['notice'];
$notice = Notice::staticGet($id);
if(empty($notice)){
$this->serverError(_("Notice $id not found."), 404);
}
$profile = $notice->getProfile();
if (empty($profile)) {
$this->serverError(_('Notice has no profile.'), 500);
}
$authorname = $profile->getFancyName();
$oembed['title'] = sprintf(_('%1$s\'s status on %2$s'),
$authorname,
common_exact_date($notice->created));
$oembed['author_name']=$authorname;
$oembed['author_url']=$profile->profileurl;
$oembed['url']=($notice->url?$notice->url:$notice->uri);
$oembed['html']=$notice->rendered;
break;
case 'attachment':
$id = $proxy_args['attachment'];
$attachment = File::staticGet($id);
if(empty($attachment)){
$this->serverError(_("Attachment $id not found."), 404);
}
if(empty($attachment->filename) && $file_oembed = File_oembed::staticGet('file_id', $attachment->id)){
// Proxy the existing oembed information
$oembed['type']=$file_oembed->type;
$oembed['provider']=$file_oembed->provider;
$oembed['provider_url']=$file_oembed->provider_url;
$oembed['width']=$file_oembed->width;
$oembed['height']=$file_oembed->height;
$oembed['html']=$file_oembed->html;
$oembed['title']=$file_oembed->title;
$oembed['author_name']=$file_oembed->author_name;
$oembed['author_url']=$file_oembed->author_url;
$oembed['url']=$file_oembed->url;
}else if(substr($attachment->mimetype,0,strlen('image/'))=='image/'){
$oembed['type']='photo';
if ($attachment->filename) {
$filepath = File::path($attachment->filename);
$gis = @getimagesize($filepath);
if ($gis) {
$oembed['width'] = $gis[0];
$oembed['height'] = $gis[1];
} else {
// TODO Either throw an error or find a fallback?
}
}
$oembed['url']=$attachment->url;
$thumb = $attachment->getThumbnail();
if ($thumb) {
$oembed['thumbnail_url'] = $thumb->url;
$oembed['thumbnail_width'] = $thumb->width;
$oembed['thumbnail_height'] = $thumb->height;
}
}else{
$oembed['type']='link';
$oembed['url']=common_local_url('attachment',
array('attachment' => $attachment->id));
}
if($attachment->title) $oembed['title']=$attachment->title;
break;
default:
$this->serverError(_("$path not supported for oembed requests."), 501);
}
switch($args['format']){
case 'xml':
$this->init_document('xml');
$this->elementStart('oembed');
$this->element('version',null,$oembed['version']);
$this->element('type',null,$oembed['type']);
if($oembed['provider_name']) $this->element('provider_name',null,$oembed['provider_name']);
if($oembed['provider_url']) $this->element('provider_url',null,$oembed['provider_url']);
if($oembed['title']) $this->element('title',null,$oembed['title']);
if($oembed['author_name']) $this->element('author_name',null,$oembed['author_name']);
if($oembed['author_url']) $this->element('author_url',null,$oembed['author_url']);
if($oembed['url']) $this->element('url',null,$oembed['url']);
if($oembed['html']) $this->element('html',null,$oembed['html']);
if($oembed['width']) $this->element('width',null,$oembed['width']);
if($oembed['height']) $this->element('height',null,$oembed['height']);
if($oembed['cache_age']) $this->element('cache_age',null,$oembed['cache_age']);
if($oembed['thumbnail_url']) $this->element('thumbnail_url',null,$oembed['thumbnail_url']);
if($oembed['thumbnail_width']) $this->element('thumbnail_width',null,$oembed['thumbnail_width']);
if($oembed['thumbnail_height']) $this->element('thumbnail_height',null,$oembed['thumbnail_height']);
$this->elementEnd('oembed');
$this->end_document('xml');
break;
case 'json': case '':
$this->init_document('json');
print(json_encode($oembed));
$this->end_document('json');
break;
default:
// TRANS: Error message displaying attachments. %s is a raw MIME type (eg 'image/png')
$this->serverError(sprintf(_('Content type %s not supported.'), $apidata['content-type']), 501);
}
}else{
// TRANS: Error message displaying attachments. %s is the site's base URL.
$this->serverError(sprintf(_('Only %s URLs over plain HTTP please.'), common_root_url()), 404);
}
}
function init_document($type)
{
switch ($type) {
case 'xml':
header('Content-Type: application/xml; charset=utf-8');
$this->startXML();
break;
case 'json':
header('Content-Type: application/json; charset=utf-8');
// Check for JSONP callback
$callback = $this->arg('callback');
if ($callback) {
print $callback . '(';
}
break;
default:
$this->serverError(_('Not a supported data format.'), 501);
break;
}
}
function end_document($type='xml')
{
switch ($type) {
case 'xml':
$this->endXML();
break;
case 'json':
// Check for JSONP callback
$callback = $this->arg('callback');
if ($callback) {
print ')';
}
break;
default:
$this->serverError(_('Not a supported data format.'), 501);
break;
}
return;
}
}
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