mirror of
https://github.com/moodle/moodle.git
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127 lines
4.0 KiB
PHP
127 lines
4.0 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU 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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// Moodle 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Picasa Repository Plugin
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*
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* @since 2.0
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* @package repository
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* @subpackage picasa
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* @copyright 2009 Dan Poltawski
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* @author Dan Poltawski <talktodan@gmail.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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require_once($CFG->libdir.'/googleapi.php');
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class repository_picasa extends repository {
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private $subauthtoken = '';
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public function __construct($repositoryid, $context = SYSCONTEXTID, $options = array()) {
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global $USER;
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parent::__construct($repositoryid, $context, $options);
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// TODO: I wish there was somewhere we could explicitly put this outside of constructor..
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$googletoken = optional_param('token', false, PARAM_RAW);
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if($googletoken){
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$gauth = new google_authsub(false, $googletoken); // will throw exception if fails
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google_picasa::set_sesskey($gauth->get_sessiontoken(), $USER->id);
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}
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$this->check_login();
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}
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public function check_login() {
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global $USER;
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$sesskey = google_picasa::get_sesskey($USER->id);
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if($sesskey){
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try{
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$gauth = new google_authsub($sesskey);
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$this->subauthtoken = $sesskey;
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return true;
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}catch(Exception $e){
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// sesskey is not valid, delete store and re-auth
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google_picasa::delete_sesskey($USER->id);
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}
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}
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return false;
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}
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public function print_login(){
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global $CFG;
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$returnurl = $CFG->wwwroot.'/repository/repository_callback.php?callback=yes&repo_id='.$this->id;
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$authurl = google_authsub::login_url($returnurl, google_picasa::REALM);
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if($this->options['ajax']){
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$ret = array();
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$popup_btn = new stdClass();
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$popup_btn->type = 'popup';
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$popup_btn->url = $authurl;
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$ret['login'] = array($popup_btn);
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return $ret;
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} else {
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echo '<a target="_blank" href="'.$authurl.'">Login</a>';
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}
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}
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public function get_listing($path='', $page = '') {
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$picasa = new google_picasa(new google_authsub($this->subauthtoken));
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$ret = array();
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$ret['dynload'] = true;
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$ret['list'] = $picasa->get_file_list($path);
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return $ret;
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}
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public function search($query){
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$picasa = new google_picasa(new google_authsub($this->subauthtoken));
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$ret = array();
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$ret['list'] = $picasa->do_photo_search($query);
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return $ret;
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}
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public function logout(){
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global $USER;
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$token = google_picasa::get_sesskey($USER->id);
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$gauth = new google_authsub($token);
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// revoke token from google
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$gauth->revoke_session_token();
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google_picasa::delete_sesskey($USER->id);
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$this->subauthtoken = '';
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return parent::logout();
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}
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public function get_name(){
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return get_string('pluginname', 'repository_picasa');
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}
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public function supported_filetypes() {
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return array('web_image');
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}
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public function supported_returntypes() {
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return (FILE_INTERNAL | FILE_EXTERNAL);
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}
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}
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// Icon for this plugin retrieved from http://www.iconspedia.com/icon/picasa-2711.html
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// Where the license is said documented to be Free
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