Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

223 lines (203 sloc) 9.008 kb
<?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_recent class is used to browse recent used files
*
* @since 2.0
* @package repository
* @subpackage recent
* @copyright 2010 Dongsheng Cai <dongsheng@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define('DEFAULT_RECENT_FILES_NUM', 50);
class repository_recent extends repository {
/**
* Initialize recent plugin
* @param int $repositoryid
* @param int $context
* @param array $options
*/
public function __construct($repositoryid, $context = SYSCONTEXTID, $options = array()) {
parent::__construct($repositoryid, $context, $options);
$number = get_config('recent', 'recentfilesnumber');
$number = (int)$number;
if (empty($number)) {
$this->number = DEFAULT_RECENT_FILES_NUM;
} else {
$this->number = $number;
}
}
/**
* recent plugin doesn't require login, so list all files
* @return mixed
*/
public function print_login() {
return $this->get_listing();
}
private function get_recent_files($limitfrom = 0, $limit = DEFAULT_RECENT_FILES_NUM) {
// XXX: get current itemid
global $USER, $DB, $itemid;
$sql = 'SELECT * FROM {files} files1
JOIN (SELECT contenthash, filename, MAX(id) AS id
FROM {files}
WHERE userid = ? AND filename != ? AND ((filearea = ? AND itemid = ?) OR filearea != ?)
GROUP BY contenthash, filename) files2 ON files1.id = files2.id
ORDER BY files1.timemodified DESC';
$params = array('userid'=>$USER->id, 'filename'=>'.', 'filearea'=>'draft', 'itemid'=>$itemid, 'draft');
$rs = $DB->get_recordset_sql($sql, $params, $limitfrom, $limit);
$result = array();
foreach ($rs as $file_record) {
$info = array();
$info['contextid'] = $file_record->contextid;
$info['itemid'] = $file_record->itemid;
$info['filearea'] = $file_record->filearea;
$info['component'] = $file_record->component;
$info['filepath'] = $file_record->filepath;
$info['filename'] = $file_record->filename;
$result[$file_record->pathnamehash] = $info;
}
$rs->close();
return $result;
}
/**
* Get file listing
*
* @param string $encodedpath
* @param string $path not used by this plugin
* @return mixed
*/
public function get_listing($encodedpath = '', $page = '') {
global $CFG, $USER, $OUTPUT;
$ret = array();
$ret['dynload'] = true;
$ret['nosearch'] = true;
$ret['nologin'] = true;
$list = array();
$files = $this->get_recent_files(0, $this->number);
try {
foreach ($files as $file) {
$params = base64_encode(serialize($file));
$node = array(
'title' => $file['filename'],
'size' => 0,
'date' => '',
'source'=> $params,
'thumbnail' => $OUTPUT->pix_url(file_extension_icon($file['filename'], 32))->out(false),
);
$list[] = $node;
}
} catch (Exception $e) {
throw new repository_exception('emptyfilelist', 'repository_recent');
}
$ret['list'] = array_filter($list, array($this, 'filter'));
return $ret;
}
public static function get_type_option_names() {
return array('recentfilesnumber', 'pluginname');
}
public function type_config_form($mform) {
parent::type_config_form($mform);
$number = get_config('repository_recent', 'recentfilesnumber');
if (empty($number)) {
$number = DEFAULT_RECENT_FILES_NUM;
}
$mform->addElement('text', 'recentfilesnumber', get_string('recentfilesnumber', 'repository_recent'));
$mform->setDefault('recentfilesnumber', $number);
}
/**
* This plugin doesn't support to link to external links
*
* @return int
*/
public function supported_returntypes() {
return FILE_INTERNAL;
}
/**
* This function overwrite the default implement to copying file using file_storage
*
* @global object $USER
* @global object $DB
* @param string $encoded The information of file, it is base64 encoded php serialized data
* @param string $draftitemid itemid
* @param string $new_filename The intended name of file
* @param string $new_filepath the new path in draft area
* @return array The information of file
*/
public function copy_to_area($encoded, $draftitemid, $new_filepath, $new_filename) {
global $USER, $DB;
$user_context = get_context_instance(CONTEXT_USER, $USER->id);
$fs = get_file_storage();
$params = unserialize(base64_decode($encoded));
$contextid = clean_param($params['contextid'], PARAM_INT);
$fileitemid = clean_param($params['itemid'], PARAM_INT);
$filename = clean_param($params['filename'], PARAM_FILE);
$filepath = clean_param($params['filepath'], PARAM_PATH);;
$filearea = clean_param($params['filearea'], PARAM_ALPHAEXT);
$component = clean_param($params['component'], PARAM_ALPHAEXT);
// XXX:
// When user try to pick a file from other filearea, normally file api will use file browse to
// operate the files with capability check, but in some areas, users don't have permission to
// browse the files (for example, forum_attachment area).
//
// To get 'recent' plugin working, we need to use lower level file_stoarge class to bypass the
// capability check, we will use a better workaround to improve it.
if ($stored_file = $fs->get_file($contextid, $component, $filearea, $fileitemid, $filepath, $filename)) {
// verify user id
if ($USER->id != $stored_file->get_userid()) {
throw new moodle_exception('errornotyourfile', 'repository');
}
$file_record = array('contextid'=>$user_context->id, 'component'=>'user', 'filearea'=>'draft',
'itemid'=>$draftitemid, 'filepath'=>$new_filepath, 'filename'=>$new_filename, 'sortorder'=>0);
// test if file already exists
if (repository::draftfile_exists($draftitemid, $new_filepath, $new_filename)) {
// create new file
$unused_filename = repository::get_unused_filename($draftitemid, $new_filepath, $new_filename);
$file_record['filename'] = $unused_filename;
// create a tmp file
$fs->create_file_from_storedfile($file_record, $stored_file);
$event = array();
$event['event'] = 'fileexists';
$event['newfile'] = new stdClass;
$event['newfile']->filepath = $new_filepath;
$event['newfile']->filename = $unused_filename;
$event['newfile']->url = moodle_url::make_draftfile_url($draftitemid, $new_filepath, $unused_filename)->out();
$event['existingfile'] = new stdClass;
$event['existingfile']->filepath = $new_filepath;
$event['existingfile']->filename = $new_filename;
$event['existingfile']->url = moodle_url::make_draftfile_url($draftitemid, $new_filepath, $new_filename)->out();;
return $event;
} else {
$fs->create_file_from_storedfile($file_record, $stored_file);
$info = array();
$info['title'] = $new_filename;
$info['itemid'] = $draftitemid;
$info['filesize'] = $stored_file->get_filesize();
$info['url'] = moodle_url::make_draftfile_url($draftitemid, $new_filepath, $new_filename)->out();;
$info['contextid'] = $user_context->id;
return $info;
}
}
return false;
}
/**
* Does this repository used to browse moodle files?
*
* @return boolean
*/
public function has_moodle_files() {
return true;
}
}
Jump to Line
Something went wrong with that request. Please try again.