moodle/repository/googledocs/repository.class.php
2009-11-18 14:21:53 +00:00

115 lines
3.3 KiB
PHP

<?php
/**
* Google Docs Plugin
*
* @author Dan Poltawski <talktodan@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
*/
require_once($CFG->libdir.'/googleapi.php');
class repository_googledocs extends repository {
private $subauthtoken = '';
public function __construct($repositoryid, $context = SITEID, $options = array()) {
global $USER;
parent::__construct($repositoryid, $context, $options);
// TODO: I wish there was somewhere we could explicitly put this outside of constructor..
$googletoken = optional_param('token', false, PARAM_RAW);
if($googletoken){
$gauth = new google_authsub(false, $googletoken); // will throw exception if fails
google_docs::set_sesskey($gauth->get_sessiontoken(), $USER->id);
}
$this->check_login();
}
public function check_login() {
global $USER;
$sesskey = google_docs::get_sesskey($USER->id);
if($sesskey){
try{
$gauth = new google_authsub($sesskey);
$this->subauthtoken = $sesskey;
return true;
}catch(Exception $e){
// sesskey is not valid, delete store and re-auth
google_docs::delete_sesskey($USER->id);
}
}
return false;
}
public function print_login($ajax = true){
global $CFG;
if($ajax){
$ret = array();
$popup_btn = new stdclass;
$popup_btn->type = 'popup';
$returnurl = $CFG->wwwroot.'/repository/repository_ajax.php?callback=yes&repo_id='.$this->id;
$popup_btn->url = google_authsub::login_url($returnurl, google_docs::REALM);
$ret['login'] = array($popup_btn);
return $ret;
}
}
public function get_listing($path='', $page = '') {
$gdocs = new google_docs(new google_authsub($this->subauthtoken));
$ret = array();
$ret['dynload'] = true;
$ret['list'] = $gdocs->get_file_list();
return $ret;
}
public function search($query){
$gdocs = new google_docs(new google_authsub($this->subauthtoken));
$ret = array();
$ret['dynload'] = true;
$ret['list'] = $gdocs->get_file_list($query);
return $ret;
}
public function logout(){
global $USER;
$token = google_docs::get_sesskey($USER->id);
$gauth = new google_authsub($token);
// revoke token from google
$gauth->revoke_session_token();
google_docs::delete_sesskey($USER->id);
$this->subauthtoken = '';
return parent::logout();
}
public function get_name(){
return get_string('repositoryname', 'repository_googledocs');
}
public function get_file($url, $file) {
global $CFG;
$path = $this->prepare_file($file);
$fp = fopen($path, 'w');
$gdocs = new google_docs(new google_authsub($this->subauthtoken));
$gdocs->download_file($url, $fp);
return $path;
}
public function supported_filetypes() {
return array('document');
}
public function supported_returntypes() {
return FILE_INTERNAL;
}
}
//Icon from: http://www.iconspedia.com/icon/google-2706.html