moodle/lib/boxlib.php
2013-11-07 15:28:34 +08:00

914 lines
29 KiB
PHP

<?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/>.
/**
* Box.net client.
*
* @package core
* @author James Levy <james@box.net>
* @link http://enabled.box.net
* @access public
* @version 1.0
* @copyright copyright Box.net 2007
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once($CFG->libdir . '/oauthlib.php');
/**
* Box.net client class.
*
* @package core
* @copyright 2013 Frédéric Massart
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class boxnet_client extends oauth2_client {
/** @const API URL */
const API = 'https://api.box.com/2.0';
/** @const UPLOAD_API URL */
const UPLOAD_API = 'https://upload.box.com/api/2.0';
/**
* Return authorize URL.
*
* @return string
*/
protected function auth_url() {
return 'https://www.box.com/api/oauth2/authorize';
}
/**
* Create a folder.
*
* @param string $foldername The folder name.
* @param int $parentid The ID of the parent folder.
* @return array Information about the new folder.
*/
public function create_folder($foldername, $parentid = 0) {
$params = array('name' => $foldername, 'parent' => array('id' => (string) $parentid));
$this->reset_state();
$result = $this->post($this->make_url("/folders"), json_encode($params));
$result = json_decode($result);
return $result;
}
/**
* Download the file.
*
* @param int $fileid File ID.
* @param string $path Path to download the file to.
* @return bool Success or not.
*/
public function download_file($fileid, $path) {
$this->reset_state();
$result = $this->download_one($this->make_url("/files/$fileid/content"), array(),
array('filepath' => $path, 'CURLOPT_FOLLOWLOCATION' => true));
return ($result === true && $this->info['http_code'] === 200);
}
/**
* Get info of a file.
*
* @param int $fileid File ID.
* @return object
*/
public function get_file_info($fileid) {
$this->reset_state();
$result = $this->request($this->make_url("/files/$fileid"));
return json_decode($result);
}
/**
* Get a folder content.
*
* @param int $folderid Folder ID.
* @return object
*/
public function get_folder_items($folderid = 0) {
$this->reset_state();
$result = $this->request($this->make_url("/folders/$folderid/items",
array('fields' => 'id,name,type,modified_at,size,owned_by')));
return json_decode($result);
}
/**
* Log out.
*
* @return void
*/
public function log_out() {
if ($accesstoken = $this->get_accesstoken()) {
$params = array(
'client_id' => $this->get_clientid(),
'client_secret' => $this->get_clientsecret(),
'token' => $accesstoken->token
);
$this->reset_state();
$this->post($this->revoke_url(), $params);
}
parent::log_out();
}
/**
* Build a request URL.
*
* @param string $uri The URI to request.
* @param array $params Query string parameters.
* @param bool $uploadapi Whether this works with the upload API or not.
* @return string
*/
protected function make_url($uri, $params = array(), $uploadapi = false) {
$api = $uploadapi ? self::UPLOAD_API : self::API;
$url = new moodle_url($api . '/' . ltrim($uri, '/'), $params);
return $url->out(false);
}
/**
* Rename a file.
*
* @param int $fileid The file ID.
* @param string $newname The new file name.
* @return object Box.net file object.
*/
public function rename_file($fileid, $newname) {
// This requires a PUT request with data within it. We cannot use
// the standard PUT request 'CURLOPT_PUT' because it expects a file.
$data = array('name' => $newname);
$options = array(
'CURLOPT_CUSTOMREQUEST' => 'PUT',
'CURLOPT_POSTFIELDS' => json_encode($data)
);
$url = $this->make_url("/files/$fileid");
$this->reset_state();
$result = $this->request($url, $options);
$result = json_decode($result);
return $result;
}
/**
* Resets curl for multiple requests.
*
* @return void
*/
public function reset_state() {
$this->cleanopt();
$this->resetHeader();
}
/**
* Return the revoke URL.
*
* @return string
*/
protected function revoke_url() {
return 'https://www.box.com/api/oauth2/revoke';
}
/**
* Share a file and return the link to it.
*
* @param string $fileid The file ID.
* @param bool $businesscheck Whether or not to check if the user can share files, has a business account.
* @return object
*/
public function share_file($fileid, $businesscheck = true) {
// Sharing the file, this requires a PUT request with data within it. We cannot use
// the standard PUT request 'CURLOPT_PUT' because it expects a file.
$data = array('shared_link' => array('access' => 'open', 'permissions' =>
array('can_download' => true, 'can_preview' => true)));
$options = array(
'CURLOPT_CUSTOMREQUEST' => 'PUT',
'CURLOPT_POSTFIELDS' => json_encode($data)
);
$this->reset_state();
$result = $this->request($this->make_url("/files/$fileid"), $options);
$result = json_decode($result);
if ($businesscheck) {
// Checks that the user has the right to share the file. If not, throw an exception.
$this->reset_state();
$this->head($result->shared_link->download_url);
$info = $this->get_info();
if ($info['http_code'] == 403) {
throw new moodle_exception('No permission to share the file');
}
}
return $result->shared_link;
}
/**
* Search.
*
* @return object
*/
public function search($query) {
$this->reset_state();
$result = $this->request($this->make_url('/search', array('query' => $query, 'limit' => 50, 'offset' => 0)));
return json_decode($result);
}
/**
* Return token URL.
*
* @return string
*/
protected function token_url() {
return 'https://www.box.com/api/oauth2/token';
}
/**
* Upload a file.
*
* Please note that the file is named on Box.net using the path we are providing, and so
* the file has the name of the stored_file hash.
*
* @param stored_file $storedfile A stored_file.
* @param integer $parentid The ID of the parent folder.
* @return object Box.net file object.
*/
public function upload_file(stored_file $storedfile, $parentid = 0) {
$url = $this->make_url('/files/content', array(), true);
$options = array(
'filename' => $storedfile,
'parent_id' => $parentid
);
$this->reset_state();
$result = $this->post($url, $options);
$result = json_decode($result);
return $result;
}
}
/**
* Box REST Client Library for PHP5 Developers.
*
* Deprecation note: As of the 14th of December 2013 Box.net APIv1, used by this class,
* is reaching its end of life. Please use boxnet_client() instead.
*
* @package core
* @author James Levy <james@box.net>
* @link http://enabled.box.net
* @access public
* @version 1.0
* @copyright copyright Box.net 2007
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @deprecated since 2.6, 2.5.3, 2.4.7
*/
class boxclient {
/** @var string */
public $auth_token = '';
/** @var string */
private $_box_api_url = 'https://www.box.com/api/1.0/rest';
private $_box_api_upload_url = 'http://upload.box.com/api/1.0/upload';
private $_box_api_download_url = 'http://www.box.com/api/1.0/download';
private $_box_api_auth_url = 'http://www.box.com/api/1.0/auth';
private $_error_code = '';
private $_error_msg = '';
/** @var bool */
private $debug = false;
/**
* @param string $api_key
* @param string $auth_token
* @param bool $debug
*/
public function __construct($api_key, $auth_token = '', $debug = false) {
$this->api_key = $api_key;
$this->auth_token = $auth_token;
if (!empty($debug)) {
$this->debug = true;
} else {
$this->debug = false;
}
}
/**
* Setup for Functions
*
* @param string $method
* @param array $params
* @return array
*/
function makeRequest($method, $params = array()) {
$this->_clearErrors();
$c = new curl(array('debug'=>$this->debug, 'cache'=>true, 'module_cache'=>'repository'));
$c->setopt(array('CURLOPT_FOLLOWLOCATION'=>1));
try {
if ($method == 'upload'){
$request = $this->_box_api_upload_url.'/'.
$this->auth_token.'/'.$params['folder_id'];
$xml = $c->post($request, $params);
}else{
$args = array();
$xml = $c->get($this->_box_api_url, $params);
}
$xml_parser = xml_parser_create();
// set $data here
xml_parse_into_struct($xml_parser, $xml, $data);
xml_parser_free($xml_parser);
} catch (moodle_exception $e) {
$this->setError(0, 'connection time-out or invalid url');
return false;
}
return $data;
}
/**
* @param array $params
* @return array
*/
function getTicket($params = array()) {
$params['api_key'] = $this->api_key;
$params['action'] = 'get_ticket';
$ret_array = array();
$data = $this->makeRequest('action=get_ticket', $params);
if ($this->_checkForError($data)) {
return false;
}
foreach ($data as $a) {
switch ($a['tag']) {
case 'STATUS':
$ret_array['status'] = $a['value'];
break;
case 'TICKET':
$ret_array['ticket'] = $a['value'];
break;
}
}
return $ret_array;
}
/**
* $options['username'] and $options['password'] must be
* given, we will use them to obtain a valid auth_token
* To get a token, you should use following code:
*
* <code>
* $box = new boxclient('dmls97d8j3i9tn7av8y71m9eb55vrtj4');
* Get a ticket
* $t = $box->getTicket();
* $box->getAuthToken($t['ticket'], array(
* 'username'=>'dongsheng@moodle.com',
* 'password'=>'xxx'));
* </code>
*
* @param string $ticket
* @param string $username
* @param string $password
* @return mixed
*/
function getAuthToken($ticket, $username, $password) {
$c = new curl(array('debug'=>$this->debug));
$c->setopt(array('CURLOPT_FOLLOWLOCATION'=>0));
$param = array(
'login_form1'=>'',
'login'=>$username,
'password'=>$password,
'dologin'=>1,
'__login'=>1
);
try {
$ret = $c->post($this->_box_api_auth_url.'/'.$ticket, $param);
} catch (moodle_exception $e) {
$this->setError(0, 'connection time-out or invalid url');
return false;
}
$header = $c->getResponse();
if(empty($header['location'])) {
throw new repository_exception('invalidpassword', 'repository_boxnet');
}
$location = $header['location'];
preg_match('#auth_token=(.*)$#i', $location, $matches);
$auth_token = $matches[1];
if(!empty($auth_token)) {
$this->auth_token = $auth_token;
return $auth_token;
} else {
throw new repository_exception('invalidtoken', 'repository_boxnet');
}
}
/**
* @param string $path Unused
* @param array $params
* @return array
*/
function getfiletree($path, $params = array()) {
$this->_clearErrors();
$params['auth_token'] = $this->auth_token;
$params['folder_id'] = 0;
$params['api_key'] = $this->api_key;
$params['action'] = 'get_account_tree';
$params['onelevel'] = 1;
$params['params[]'] = 'nozip';
$c = new curl(array('debug'=>$this->debug));
$c->setopt(array('CURLOPT_FOLLOWLOCATION'=>1));
try {
$args = array();
$xml = $c->get($this->_box_api_url, $params);
} catch (Exception $e){
}
$ret = array();
$o = simplexml_load_string(trim($xml));
if($o->status == 'listing_ok') {
$tree = $o->tree->folder;
$this->buildtree($tree, $ret);
}
return $ret;
}
/**
* Get box.net file info
*
* @param string $fileid
* @param int $timeout request timeout in seconds
* @return stdClass|null
*/
function get_file_info($fileid, $timeout = 0) {
$this->_clearErrors();
$params = array();
$params['action'] = 'get_file_info';
$params['file_id'] = $fileid;
$params['auth_token'] = $this->auth_token;
$params['api_key'] = $this->api_key;
$http = new curl(array('debug'=>$this->debug));
$xml = $http->get($this->_box_api_url, $params, array('timeout' => $timeout));
if (!$http->get_errno()) {
$o = simplexml_load_string(trim($xml));
if ($o->status == 's_get_file_info') {
return $o->info;
}
}
return null;
}
/**
* @param array $sax
* @param array $tree Passed by reference
*/
function buildtree($sax, &$tree){
$sax = (array)$sax;
$count = 0;
foreach($sax as $k=>$v){
if($k == 'folders'){
$o = $sax[$k];
foreach($o->folder as $z){
$tmp = array('title'=>(string)$z->attributes()->name,
'size'=>0, 'date'=>userdate(time()),
'thumbnail'=>'https://www.box.com/img/small_folder_icon.gif',
'path'=>array('name'=>(string)$z->attributes()->name, 'path'=>(int)$z->attributes()->id));
$tmp['children'] = array();
$this->buildtree($z, $tmp['children']);
$tree[] = $tmp;
}
} elseif ($k == 'files') {
$val = $sax[$k]->file;
foreach($val as $file){
$thumbnail = (string)$file->attributes()->thumbnail;
if (!preg_match('#^(?:http://)?([^/]+)#i', $thumbnail)) {
$thumbnail = 'http://www.box.com'.$thumbnail;
}
$tmp = array('title'=>(string)$file->attributes()->file_name,
'size'=>display_size((int)$file->attributes()->size),
'thumbnail'=>$thumbnail,
'date'=>userdate((int)$file->attributes()->updated),
'source'=> $this->_box_api_download_url .'/'
.$this->auth_token.'/'.(string)$file->attributes()->id,
'url'=>(string)$file->attributes()->shared_link);
$tree[] = $tmp;
}
}
$count++;
}
}
/**
* @param array $params
* @return bool|array Array or false
*/
function getAccountTree($params = array()) {
$params['auth_token'] = $this->auth_token;
$params['folder_id'] = 0;
$params['api_key'] = $this->api_key;
$params['action'] = 'get_account_tree';
$params['onelevel'] = 1;
$params['params[]'] = 'nozip';
$ret_array = array();
$data = $this->makeRequest('action=get_account_tree', $params);
if ($this->_checkForError($data)) {
return false;
}
$tree_count=count($data);
$entry_count = 0;
for ($i=0; $i<$tree_count; $i++) {
$a = $data[$i];
switch ($a['tag'])
{
case 'FOLDER':
if (@is_array($a['attributes'])) {
$ret_array['folder_id'][$i] = $a['attributes']['ID'];
$ret_array['folder_name'][$i] = $a['attributes']['NAME'];
$ret_array['shared'][$i] = $a['attributes']['SHARED'];
}
break;
case 'FILE':
if (@is_array($a['attributes'])) {
$ret_array['file_id'][$i] = $a['attributes']['ID'];
@$ret_array['file_name'][$i] = $a['attributes']['FILE_NAME'];
@$ret_array['file_keyword'][$i] = $a['attributes']['KEYWORD'];
@$ret_array['file_size'][$i] = display_size($a['attributes']['SIZE']);
@$ret_array['file_date'][$i] = userdate($a['attributes']['UPDATED']);
if (preg_match('#^(?:http://)?([^/]+)#i', $a['attributes']['THUMBNAIL'])) {
@$ret_array['thumbnail'][$i] = $a['attributes']['THUMBNAIL'];
} else {
@$ret_array['thumbnail'][$i] = 'http://www.box.com'.$a['attributes']['THUMBNAIL'];
}
$entry_count++;
}
break;
}
}
return $ret_array;
}
/**
* @param string $new_folder_name
* @param array $params
* @return bool|array Array or false
*/
function CreateFolder($new_folder_name, $params = array()) {
$params['auth_token'] = $this->auth_token;
$params['api_key'] = $this->api_key;
$params['action'] = 'create_folder';
$params['name'] = $new_folder_name;
$defaults = array(
'parent_id' => 0, //Set to '0' by default. Change to create within sub-folder.
'share' => 1, //Set to '1' by default. Set to '0' to make folder private.
);
foreach ($defaults as $key => $value) {
if (!array_key_exists($key, $params)) {
$params[$key] = $value;
}
}
$ret_array = array();
$data = $this->makeRequest('action=create_folder', $params);
if ($this->_checkForError($data)) {
return false;
}
foreach ($data as $a) {
if (!empty($a['value'])) {
switch ($a['tag']) {
case 'FOLDER_ID':
$ret_array['folder_id'] = $a['value'];
break;
case 'FOLDER_NAME':
$ret_array['folder_name'] = $a['value'];
break;
case 'FOLDER_TYPE_ID':
$ret_array['folder_type_id'] = $a['value'];
break;
case 'SHARED':
$ret_array['shared'] = $a['value'];
break;
case 'PASSWORD':
$ret_array['password'] = $a['value'];
break;
}
} else {
$ret_array[strtolower($a['tag'])] = null;
}
}
return $ret_array;
}
/**
* Upload a File
* @param array $params the file MUST be present in key 'file' and be a moodle stored_file object.
* @return array|bool Array or false
*/
function UploadFile ($params = array()) {
$params['auth_token'] = $this->auth_token;
// this param should be the full path of the file
$params['new_file1'] = $params['file'];
unset($params['file']);
$defaults = array(
'folder_id' => 0, //Set to '0' by default. Change to create within sub-folder.
'share' => 1, //Set to '1' by default. Set to '0' to make folder private.
);
foreach ($defaults as $key => $value) {
if (!array_key_exists($key, $params)) {
$params[$key] = $value;
}
}
$ret_array = array();
$entry_count = 0;
$data = $this->makeRequest('upload', $params);
if ($this->_checkForError($data)) {
return false;
}
for ($i=0, $tree_count=count($data); $i<$tree_count; $i++) {
$a = $data[$i];
switch ($a['tag']) {
case 'STATUS':
$ret_array['status'] = $a['value'];
break;
case 'FILE':
if (is_array($a['attributes'])) {
@$ret_array['file_name'][$i] = $a['attributes']['FILE_NAME'];
@$ret_array['id'][$i] = $a['attributes']['ID'];
@$ret_array['folder_name'][$i] = $a['attributes']['FOLDER_NAME'];
@$ret_array['error'][$i] = $a['attributes']['ERROR'];
@$ret_array['public_name'][$i] = $a['attributes']['PUBLIC_NAME'];
$entry_count++;
}
break;
}
}
return $ret_array;
}
/**
* @param string $fileid
* @param string $newname
* @return bool
*/
function RenameFile($fileid, $newname) {
$params = array(
'api_key' => $this->api_key,
'auth_token' => $this->auth_token,
'action' => 'rename',
'target' => 'file',
'target_id' => $fileid,
'new_name' => $newname,
);
$data = $this->makeRequest('action=rename', $params);
if ($this->_checkForError($data)) {
return false;
}
foreach ($data as $a) {
switch ($a['tag']) {
case 'STATUS':
if ($a['value'] == 's_rename_node') {
return true;
}
}
}
return false;
}
/**
* Register New User
*
* @param array $params
* @return array|bool Outcome Array or false
*/
function RegisterUser($params = array()) {
$params['api_key'] = $this->api_key;
$params['action'] = 'register_new_user';
$params['login'] = $_REQUEST['login'];
$params['password'] = $_REQUEST['password'];
$ret_array = array();
$data = $this->makeRequest('action=register_new_user', $params);
if ($this->_checkForError($data)) {
return false;
}
foreach ($data as $a) {
switch ($a['tag']) {
case 'STATUS':
$ret_array['status'] = $a['value'];
break;
case 'AUTH_TOKEN':
$ret_array['auth_token'] = $a['value'];
break;
case 'LOGIN':
$ret_array['login'] = $a['value'];
break;
case 'SPACE_AMOUNT':
$ret_array['space_amount'] = $a['value'];
break;
case 'SPACE_USED':
$ret_array['space_used'] = $a['value'];
break;
}
}
return $ret_array;
}
/**
* Add Tags (http://enabled.box.net/docs/rest#add_to_tag)
*
* @param string $tag
* @param string $id Set to ID of file or folder
* @param string $target_type File or folder
* @param array $params
* @return array|bool Outcome Array or false
*/
function AddTag($tag, $id, $target_type, $params = array()) {
$params['auth_token'] = $this->auth_token;
$params['api_key'] = $this->api_key;
$params['action'] = 'add_to_tag';
$params['target'] = $target_type; // File or folder
$params['target_id'] = $id; // Set to ID of file or folder
$params['tags[]'] = $tag;
$ret_array = array();
$data = $this->makeRequest('action=add_to_tag', $params);
if ($this->_checkForError($data)) {
return false;
}
foreach ($data as $a) {
switch ($a['tag']) {
case 'STATUS':
$ret_array['status'] = $a['value'];
break;
}
}
return $ret_array;
}
/**
* Public Share (http://enabled.box.net/docs/rest#public_share)
*
* @param string $message
* @param string $emails
* @param string $id Set to ID of file or folder
* @param string $target_type File or folder
* @param string $password
* @param array $params
* @return array|bool Outcome Array or false
*/
function PublicShare($message, $emails, $id, $target_type, $password, $params = array()) {
$params['auth_token'] = $this->auth_token;
$params['api_key'] = $this->api_key;
$params['action'] = 'public_share';
$params['target'] = $target_type;
$params['target_id'] = $id;
$params['password'] = $password;
$params['message'] = $message;
$params['emails'] = $emails;
$ret_array = array();
$data = $this->makeRequest('action=public_share', $params);
if ($this->_checkForError($data)) {
return false;
}
foreach ($data as $a) {
switch ($a['tag']) {
case 'STATUS':
$ret_array['status'] = $a['value'];
break;
case 'PUBLIC_NAME':
$ret_array['public_name'] = $a['value'];
break;
}
}
return $ret_array;
}
/**
* Get Friends (http://enabled.box.net/docs/rest#get_friends)
*
* @param array $params
* @return array|bool Outcome Array or false
*/
function GetFriends ($params = array()) {
$params['auth_token'] = $this->auth_token;
$params['action'] = 'get_friends';
$params['api_key'] = $this->api_key;
$params['params[]'] = 'nozip';
$ret_array = array();
$data = $this->makeRequest('action=get_friends', $params);
if ($this->_checkForError($data)) {
return false;
}
foreach ($data as $a) {
switch ($a['tag']) {
case 'NAME':
$ret_array['name'] = $a['value'];
break;
case 'EMAIL':
$ret_array['email'] = $a['value'];
break;
case 'ACCEPTED':
$ret_array['accepted'] = $a['value'];
break;
case 'AVATAR_URL':
$ret_array['avatar_url'] = $a['value'];
break;
case 'ID':
$ret_array['id'] = $a['value'];
break;
case 'URL':
$ret_array['url'] = $a['value'];
break;
case 'STATUS':
$ret_array['status'] = $a['value'];
break;
}
}
return $ret_array;
}
/**
* Logout User (http://enabled.box.net/docs/rest#get_friends)
*
* @param array $params
* @return array|bool Outcome Array or false
*/
function Logout($params = array()) {
$params['auth_token'] = $this->auth_token;
$params['api_key'] = $this->api_key;
$params['action'] = 'logout';
$ret_array = array();
$data = $this->makeRequest('action=logout', $params);
if ($this->_checkForError($data)) {
return false;
}
foreach ($data as $a) {
switch ($a['tag']) {
case 'ACTION':
$ret_array['logout'] = $a['value'];
break;
}
return $ret_array;
}
}
/**
* @param array $data
* @return bool
*/
function _checkForError($data) {
if ($this->_error_msg != '') {
return true;
}
if (@$data[0]['attributes']['STAT'] == 'fail') {
$this->_error_code = $data[1]['attributes']['CODE'];
$this->_error_msg = $data[1]['attributes']['MSG'];
return true;
}
return false;
}
/**
* @return bool
*/
public function isError() {
if ($this->_error_msg != '') {
return true;
}
return false;
}
/**
*
*/
public function setError($code = 0, $msg){
$this->_error_code = $code;
$this->_error_msg = $msg;
}
/**
* @return string
*/
function getErrorMsg() {
return '<p>Error: (' . $this->_error_code . ') ' . $this->_error_msg . '</p>';
}
/**
* @return string
*/
function getErrorCode() {
return $this->_error_code;
}
/**
*
*/
function _clearErrors() {
$this->_error_code = '';
$this->_error_msg = '';
}
}