gnu-social/classes/File_oembed.php
Brion Vibber 4f323efdf7 Encapsulate the oEmbed -> oohembed fallback into oEmbedHelper class. Also added a chance to whitelist sites that don't show discovery info but do have oEmbed API endpoints, and to provide alternate APIs for some common services.
Newly supported:
- TwitPic: added a local function using TwitPic's API, since the oohembed implementation for TwitPic produced invalid output which Services_oEmbed rejects. (bug filed upstream)

Tweaked...
- Flickr: works, now using whitelist to use their endpoint directly instead of going through oohembed
- Youtube: worked around a bug in Services_oEmbed which broke the direct use of API discovery info, so we don't have to use oohembed.

Not currently working...
- YFrog: whitelisting their endpoint directly as the oohembed output is broken, but this doesn't appear to work currently as I think things are confused by YFrog's servers giving a '204 No Content' response on our HEAD checks on the original link.
2010-11-12 17:41:35 -08:00

124 lines
5.1 KiB
PHP

<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008, 2009, StatusNet, Inc.
*
* 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/>.
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
require_once INSTALLDIR.'/classes/File_redirection.php';
/**
* Table Definition for file_oembed
*/
class File_oembed extends Memcached_DataObject
{
###START_AUTOCODE
/* the code below is auto generated do not remove the above tag */
public $__table = 'file_oembed'; // table name
public $file_id; // int(4) primary_key not_null
public $version; // varchar(20)
public $type; // varchar(20)
public $mimetype; // varchar(50)
public $provider; // varchar(50)
public $provider_url; // varchar(255)
public $width; // int(4)
public $height; // int(4)
public $html; // text()
public $title; // varchar(255)
public $author_name; // varchar(50)
public $author_url; // varchar(255)
public $url; // varchar(255)
public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
/* Static get */
function staticGet($k,$v=NULL) { return Memcached_DataObject::staticGet('File_oembed',$k,$v); }
/* the code above is auto generated do not remove the tag below */
###END_AUTOCODE
function sequenceKey()
{
return array(false, false, false);
}
function _getOembed($url) {
$parameters = array(
'maxwidth' => common_config('attachments', 'thumb_width'),
'maxheight' => common_config('attachments', 'thumb_height'),
);
try {
return oEmbedHelper::getObject($url, $parameters);
} catch (Exception $e) {
common_log(LOG_ERR, "Error during oembed lookup for $url - " . $e->getMessage());
return false;
}
}
/**
* Save embedding info for a new file.
*
* @param object $data Services_oEmbed_Object_*
* @param int $file_id
*/
function saveNew($data, $file_id) {
$file_oembed = new File_oembed;
$file_oembed->file_id = $file_id;
$file_oembed->version = $data->version;
$file_oembed->type = $data->type;
if (!empty($data->provider_name)) $file_oembed->provider = $data->provider_name;
if (!empty($data->provider)) $file_oembed->provider = $data->provider;
if (!empty($data->provide_url)) $file_oembed->provider_url = $data->provider_url;
if (!empty($data->width)) $file_oembed->width = intval($data->width);
if (!empty($data->height)) $file_oembed->height = intval($data->height);
if (!empty($data->html)) $file_oembed->html = $data->html;
if (!empty($data->title)) $file_oembed->title = $data->title;
if (!empty($data->author_name)) $file_oembed->author_name = $data->author_name;
if (!empty($data->author_url)) $file_oembed->author_url = $data->author_url;
if (!empty($data->url)){
$file_oembed->url = $data->url;
$given_url = File_redirection::_canonUrl($file_oembed->url);
if (! empty($given_url)){
$file = File::staticGet('url', $given_url);
if (empty($file)) {
$file_redir = File_redirection::staticGet('url', $given_url);
if (empty($file_redir)) {
$redir_data = File_redirection::where($given_url);
$file_oembed->mimetype = $redir_data['type'];
} else {
$file_id = $file_redir->file_id;
}
} else {
$file_oembed->mimetype=$file->mimetype;
}
}
}
$file_oembed->insert();
if (!empty($data->thumbnail_url) || ($data->type == 'photo')) {
$ft = File_thumbnail::staticGet('file_id', $file_id);
if (!empty($ft)) {
common_log(LOG_WARNING, "Strangely, a File_thumbnail object exists for new file $file_id",
__FILE__);
} else {
File_thumbnail::saveNew($data, $file_id);
}
}
}
}