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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* repository_youtube class
*
* @since 2.0
* @package repository
* @subpackage youtube
* @copyright 2009 Dongsheng Cai
* @author Dongsheng Cai <dongsheng@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class repository_youtube extends repository {
public function __construct($repositoryid, $context = SYSCONTEXTID, $options = array()) {
$this->keyword = optional_param('youtube_keyword', '', PARAM_RAW);
$this->start =1;
$this->max = 27;
$this->sort = optional_param('youtube_sort', '', PARAM_TEXT);
parent::__construct($repositoryid, $context, $options);
}
public function check_login() {
return !empty($this->keyword);
}
public function search($search_text) {
$ret = array();
$ret['nologin'] = true;
$ret['list'] = $this->_get_collection($this->keyword, $this->start, $this->max, $this->sort);
return $ret;
}
private function _get_collection($keyword, $start, $max, $sort) {
$list = array();
$this->feed_url = 'http://gdata.youtube.com/feeds/api/videos?q=' . urlencode($keyword) . '&format=5&start-index=' . $start . '&max-results=' .$max . '&orderby=' . $sort;
$c = new curl(array('cache'=>true, 'module_cache'=>'repository'));
$content = $c->get($this->feed_url);
$xml = simplexml_load_string($content);
$media = $xml->entry->children('http://search.yahoo.com/mrss/');
$links = $xml->children('http://www.w3.org/2005/Atom');
foreach ($xml->entry as $entry) {
$media = $entry->children('http://search.yahoo.com/mrss/');
$title = $media->group->title;
$attrs = $media->group->thumbnail->attributes();
$thumbnail = $attrs['url'];
$arr = explode('/', $entry->id);
$id = $arr[count($arr)-1];
$source = 'http://www.youtube.com/v/' . $id . '#' . $title;
$list[] = array(
'title'=>(string)$title,
'thumbnail'=>(string)$attrs['url'],
'thumbnail_width'=>150,
'thumbnail_height'=>120,
'size'=>'',
'date'=>'',
'source'=>$source
);
}
return $list;
}
public function global_search() {
return false;
}
public function get_listing($path='', $page = '') {
$ret = array();
$ret['nologin'] = true;
$ret['list'] = $this->_get_collection($this->keyword, $this->start, $this->max, $this->sort);
return $ret;
}
public function print_login($ajax = true) {
$ret = array();
$search = new stdClass();
$search->type = 'text';
$search->id = 'youtube_search';
$search->name = 'youtube_keyword';
$search->label = get_string('search', 'repository_youtube').': ';
$sort = new stdClass();
$sort->type = 'select';
$sort->options = array(
(object)array(
'value' => 'relevance',
'label' => get_string('sortrelevance', 'repository_youtube')
),
(object)array(
'value' => 'published',
'label' => get_string('sortpublished', 'repository_youtube')
),
(object)array(
'value' => 'rating',
'label' => get_string('sortrating', 'repository_youtube')
),
(object)array(
'value' => 'viewCount',
'label' => get_string('sortviewcount', 'repository_youtube')
)
);
$sort->id = 'youtube_sort';
$sort->name = 'youtube_sort';
$sort->label = get_string('sortby', 'repository_youtube').': ';
$ret['login'] = array($search, $sort);
$ret['login_btn_label'] = get_string('search');
$ret['login_btn_action'] = 'search';
return $ret;
}
public function supported_filetypes() {
return array('web_video');
}
public function supported_returntypes() {
return FILE_EXTERNAL;
}
}
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