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lib.php
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lib.php
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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/>.
/**
* This plugin is used to access picasa pictures
*
* @since Moodle 2.0
* @package repository_picasa
* @copyright 2009 Dan Poltawski <talktodan@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once($CFG->dirroot . '/repository/lib.php');
require_once($CFG->libdir.'/googleapi.php');
/**
* Picasa Repository Plugin
*
* @since Moodle 2.0
* @package repository
* @subpackage picasa
* @copyright 2009 Dan Poltawski
* @author Dan Poltawski <talktodan@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class repository_picasa extends repository {
private $googleoauth = null;
public function __construct($repositoryid, $context = SYSCONTEXTID, $options = array()) {
parent::__construct($repositoryid, $context, $options);
$returnurl = new moodle_url('/repository/repository_callback.php');
$returnurl->param('callback', 'yes');
$returnurl->param('repo_id', $this->id);
$returnurl->param('sesskey', sesskey());
$clientid = get_config('picasa', 'clientid');
$secret = get_config('picasa', 'secret');
$this->googleoauth = new google_oauth($clientid, $secret, $returnurl, google_picasa::REALM);
$this->check_login();
}
public function check_login() {
return $this->googleoauth->is_logged_in();
}
public function print_login() {
$url = $this->googleoauth->get_login_url();
if ($this->options['ajax']) {
$popup = new stdClass();
$popup->type = 'popup';
$popup->url = $url->out(false);
return array('login' => array($popup));
} else {
echo '<a target="_blank" href="'.$url->out(false).'">'.get_string('login', 'repository').'</a>';
}
}
public function get_listing($path='', $page = '') {
$picasa = new google_picasa($this->googleoauth);
$ret = array();
$ret['dynload'] = true;
$ret['manage'] = google_picasa::MANAGE_URL;
$ret['list'] = $picasa->get_file_list($path);
$ret['path'] = array((object)array('name'=>get_string('home'), 'path' => ''));
if ($path) {
$ret['path'][] = (object)array('name'=>$picasa->get_last_album_name(), 'path' => $path);
}
return $ret;
}
public function search($search_text, $page = 0) {
$picasa = new google_picasa($this->googleoauth);
$ret = array();
$ret['manage'] = google_picasa::MANAGE_URL;
$ret['list'] = $picasa->do_photo_search($search_text);
return $ret;
}
public function logout() {
$this->googleoauth->log_out();
return parent::logout();
}
public function supported_filetypes() {
return array('web_image');
}
public function supported_returntypes() {
return (FILE_INTERNAL | FILE_EXTERNAL);
}
public static function get_type_option_names() {
return array('clientid', 'secret', 'pluginname');
}
public static function type_config_form($mform, $classname = 'repository') {
$a = new stdClass;
$a->docsurl = get_docs_url('Google_OAuth_2.0_setup');
$a->callbackurl = google_oauth::callback_url()->out(false);
$mform->addElement('static', null, '', get_string('oauthinfo', 'repository_picasa', $a));
parent::type_config_form($mform);
$mform->addElement('text', 'clientid', get_string('clientid', 'repository_picasa'));
$mform->setType('clientid', PARAM_RAW_TRIMMED);
$mform->addElement('text', 'secret', get_string('secret', 'repository_picasa'));
$mform->setType('secret', PARAM_RAW_TRIMMED);
$strrequired = get_string('required');
$mform->addRule('clientid', $strrequired, 'required', null, 'client');
$mform->addRule('secret', $strrequired, 'required', null, 'client');
}
}
// Icon for this plugin retrieved from http://www.iconspedia.com/icon/picasa-2711.html
// Where the license is said documented to be Free.