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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/>.
/**
* Accept uploading files by web service token to the user draft file area.
*
* POST params:
* token => the web service user token (needed for authentication)
* filepath => file path (where files will be stored)
* [_FILES] => for example you can send the files with <input type=file>,
* or with curl magic: 'file_1' => '@/path/to/file', or ...
* itemid => The draftid - this can be used to add a list of files
* to a draft area in separate requests. If it is 0, a new draftid will be generated.
*
* @package quizaccess_wifiresilience
* @copyright 2011 Dongsheng Cai <[email protected]>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(__DIR__ . '/../../../../config.php');
/**
* Serves the file settings.
*
* @param stdClass $course course object
* @param stdClass $cm course module object
* @param stdClass $context context object
* @param string $filearea file area
* @param array $args extra arguments
* @param bool $forcedownload whether or not force download
* @param array $options additional options affecting the file serving
* @return bool false if file not found, does not return if found - justsend the file
*/
function quizaccess_wifiresilience_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload = 1,
array $options=array()) {
// Check the contextlevel is as expected - if your plugin is a block, this becomes CONTEXT_BLOCK, etc.
if ($context->contextlevel != CONTEXT_MODULE) {
return false;
}
// Make sure the filearea is one of those used by the plugin.
if ($filearea !== 'synced_exam_files') {
return false;
}
// Make sure the user is logged in and has access to the module.
// Plugins that are not course modules should leave out the 'cm' part.
require_login($course, true, $cm);
// Leave this line out if you set the itemid to null in make_pluginfile_url (set $itemid to 0 instead).
$itemid = array_shift($args); // The first item in the $args array.
/*
Use the itemid to retrieve any relevant data records and perform any security checks to see if the
user really does have access to the file in question.
*/
// Extract the filename / filepath from the $args array.
$filename = array_pop($args); // Case: The last item in the $args array.
if (!$args) {
$filepath = '/'; // Case: $args is empty => the path is '/'.
} else {
$filepath = '/'.implode('/', $args).'/'; // Case: $args contains elements of the filepath.
}
// Retrieve the file from the Files API.
$fs = get_file_storage();
$file = $fs->get_file($context->id, 'quizaccess_wifiresilience', $filearea, $itemid, $filepath, $filename);
if (!$file or $file->is_directory()) {
send_file_not_found();
}
// We can now send the file back to the browser.
send_stored_file($file, 0, 0, true, $options);
}