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489 lines
16 KiB
489 lines
16 KiB
<?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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* FileManager form element
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*
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* Contains HTML class for a filemanager form element
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*
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* @package core_form
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* @copyright 2009 Dongsheng Cai <dongsheng@moodle.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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global $CFG;
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require_once('HTML/QuickForm/element.php');
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require_once($CFG->dirroot.'/lib/filelib.php');
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require_once($CFG->dirroot.'/repository/lib.php');
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require_once('templatable_form_element.php');
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/**
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* Filemanager form element
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*
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* FilemaneManager lets user to upload/manage multiple files
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* @package core_form
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* @category form
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* @copyright 2009 Dongsheng Cai <dongsheng@moodle.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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class MoodleQuickForm_filemanager extends HTML_QuickForm_element implements templatable {
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use templatable_form_element {
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export_for_template as export_for_template_base;
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}
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/** @var string html for help button, if empty then no help will icon will be dispalyed. */
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public $_helpbutton = '';
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/** @var array options provided to initalize filemanager */
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// PHP doesn't support 'key' => $value1 | $value2 in class definition
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// We cannot do $_options = array('return_types'=> FILE_INTERNAL | FILE_REFERENCE);
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// So I have to set null here, and do it in constructor
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protected $_options = array('mainfile' => '', 'subdirs' => 1, 'maxbytes' => -1, 'maxfiles' => -1,
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'accepted_types' => '*', 'return_types' => null, 'areamaxbytes' => FILE_AREA_MAX_BYTES_UNLIMITED);
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/**
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* Constructor
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*
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* @param string $elementName (optional) name of the filemanager
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* @param string $elementLabel (optional) filemanager label
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* @param array $attributes (optional) Either a typical HTML attribute string
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* or an associative array
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* @param array $options set of options to initalize filemanager
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*/
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public function __construct($elementName=null, $elementLabel=null, $attributes=null, $options=null) {
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global $CFG, $PAGE;
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$options = (array)$options;
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foreach ($options as $name=>$value) {
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if (array_key_exists($name, $this->_options)) {
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$this->_options[$name] = $value;
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}
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}
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if (!empty($options['maxbytes'])) {
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$this->_options['maxbytes'] = get_user_max_upload_file_size($PAGE->context, $CFG->maxbytes, $options['maxbytes']);
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}
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if (empty($options['return_types'])) {
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$this->_options['return_types'] = (FILE_INTERNAL | FILE_REFERENCE | FILE_CONTROLLED_LINK);
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}
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$this->_type = 'filemanager';
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parent::__construct($elementName, $elementLabel, $attributes);
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}
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/**
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* Old syntax of class constructor. Deprecated in PHP7.
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*
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* @deprecated since Moodle 3.1
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*/
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public function MoodleQuickForm_filemanager($elementName=null, $elementLabel=null, $attributes=null, $options=null) {
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debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);
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self::__construct($elementName, $elementLabel, $attributes, $options);
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}
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/**
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* Called by HTML_QuickForm whenever form event is made on this element
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*
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* @param string $event Name of event
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* @param mixed $arg event arguments
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* @param object $caller calling object
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* @return bool
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*/
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function onQuickFormEvent($event, $arg, &$caller)
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{
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switch ($event) {
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case 'createElement':
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$caller->setType($arg[0], PARAM_INT);
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break;
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}
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return parent::onQuickFormEvent($event, $arg, $caller);
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}
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/**
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* Sets name of filemanager
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*
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* @param string $name name of the filemanager
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*/
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function setName($name) {
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$this->updateAttributes(array('name'=>$name));
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}
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/**
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* Returns name of filemanager
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*
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* @return string
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*/
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function getName() {
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return $this->getAttribute('name');
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}
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/**
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* Updates filemanager attribute value
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*
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* @param string $value value to set
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*/
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function setValue($value) {
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$this->updateAttributes(array('value'=>$value));
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}
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/**
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* Returns filemanager attribute value
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*
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* @return string
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*/
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function getValue() {
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return $this->getAttribute('value');
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}
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/**
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* Returns maximum file size which can be uploaded
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*
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* @return int
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*/
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function getMaxbytes() {
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return $this->_options['maxbytes'];
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}
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/**
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* Sets maximum file size which can be uploaded
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*
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* @param int $maxbytes file size
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*/
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function setMaxbytes($maxbytes) {
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global $CFG, $PAGE;
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$this->_options['maxbytes'] = get_user_max_upload_file_size($PAGE->context, $CFG->maxbytes, $maxbytes);
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}
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/**
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* Returns the maximum size of the area.
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*
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* @return int
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*/
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function getAreamaxbytes() {
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return $this->_options['areamaxbytes'];
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}
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/**
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* Sets the maximum size of the area.
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*
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* @param int $areamaxbytes size limit
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*/
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function setAreamaxbytes($areamaxbytes) {
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$this->_options['areamaxbytes'] = $areamaxbytes;
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}
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/**
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* Returns true if subdirectoy can be created, else false
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*
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* @return bool
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*/
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function getSubdirs() {
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return $this->_options['subdirs'];
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}
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/**
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* Set option to create sub directory, while uploading file
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*
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* @param bool $allow true if sub directory can be created.
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*/
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function setSubdirs($allow) {
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$this->_options['subdirs'] = $allow;
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}
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/**
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* Returns maximum number of files which can be uploaded
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*
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* @return int
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*/
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function getMaxfiles() {
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return $this->_options['maxfiles'];
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}
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/**
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* Sets maximum number of files which can be uploaded.
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*
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* @param int $num number of files
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*/
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function setMaxfiles($num) {
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$this->_options['maxfiles'] = $num;
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}
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/**
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* Returns html for help button.
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*
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* @return string html for help button
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*/
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function getHelpButton() {
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return $this->_helpbutton;
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}
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/**
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* Returns type of filemanager element
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*
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* @return string
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*/
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function getElementTemplateType() {
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if ($this->_flagFrozen){
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return 'nodisplay';
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} else {
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return 'default';
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}
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}
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/**
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* Returns HTML for filemanager form element.
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*
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* @return string
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*/
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function toHtml() {
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global $CFG, $USER, $COURSE, $PAGE, $OUTPUT;
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require_once("$CFG->dirroot/repository/lib.php");
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// security - never ever allow guest/not logged in user to upload anything or use this element!
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if (isguestuser() or !isloggedin()) {
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print_error('noguest');
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}
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if ($this->_flagFrozen) {
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return $this->getFrozenHtml();
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}
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$id = $this->_attributes['id'];
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$elname = $this->_attributes['name'];
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$subdirs = $this->_options['subdirs'];
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$maxbytes = $this->_options['maxbytes'];
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$draftitemid = $this->getValue();
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$accepted_types = $this->_options['accepted_types'];
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if (empty($draftitemid)) {
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// no existing area info provided - let's use fresh new draft area
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require_once("$CFG->libdir/filelib.php");
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$this->setValue(file_get_unused_draft_itemid());
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$draftitemid = $this->getValue();
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}
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$client_id = uniqid();
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// filemanager options
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$options = new stdClass();
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$options->mainfile = $this->_options['mainfile'];
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$options->maxbytes = $this->_options['maxbytes'];
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$options->maxfiles = $this->getMaxfiles();
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$options->client_id = $client_id;
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$options->itemid = $draftitemid;
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$options->subdirs = $this->_options['subdirs'];
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$options->target = $id;
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$options->accepted_types = $accepted_types;
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$options->return_types = $this->_options['return_types'];
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$options->context = $PAGE->context;
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$options->areamaxbytes = $this->_options['areamaxbytes'];
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$html = $this->_getTabs();
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$fm = new form_filemanager($options);
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$output = $PAGE->get_renderer('core', 'files');
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$html .= $output->render($fm);
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$html .= html_writer::empty_tag('input', array('value' => $draftitemid, 'name' => $elname, 'type' => 'hidden', 'id' => $id));
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if (!empty($options->accepted_types) && $options->accepted_types != '*') {
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$html .= html_writer::tag('p', get_string('filesofthesetypes', 'form'));
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$util = new \core_form\filetypes_util();
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$filetypes = $options->accepted_types;
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$filetypedescriptions = $util->describe_file_types($filetypes);
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$html .= $OUTPUT->render_from_template('core_form/filetypes-descriptions', $filetypedescriptions);
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}
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return $html;
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}
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public function export_for_template(renderer_base $output) {
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$context = $this->export_for_template_base($output);
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$context['html'] = $this->toHtml();
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return $context;
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}
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/**
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* Check that all files have the allowed type.
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*
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* @param int $value Draft item id with the uploaded files.
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* @return string|null Validation error message or null.
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*/
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public function validateSubmitValue($value) {
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if (empty($value)) {
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return;
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}
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$filetypesutil = new \core_form\filetypes_util();
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$whitelist = $filetypesutil->normalize_file_types($this->_options['accepted_types']);
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if (empty($whitelist) || $whitelist === ['*']) {
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// Any file type is allowed, nothing to check here.
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return;
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}
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$draftfiles = file_get_all_files_in_draftarea($value);
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$wrongfiles = array();
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if (empty($draftfiles)) {
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// No file uploaded, nothing to check here.
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return;
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}
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foreach ($draftfiles as $file) {
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if (!$filetypesutil->is_allowed_file_type($file->filename, $whitelist)) {
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$wrongfiles[] = $file->filename;
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}
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}
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if ($wrongfiles) {
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$a = array(
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'whitelist' => implode(', ', $whitelist),
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'wrongfiles' => implode(', ', $wrongfiles),
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);
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return get_string('err_wrongfileextension', 'core_form', $a);
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}
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return;
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}
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}
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/**
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* Data structure representing a file manager.
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*
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* This class defines the data structure for file mnager
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*
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* @package core_form
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* @copyright 2010 Dongsheng Cai
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @todo do not use this abstraction (skodak)
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*/
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class form_filemanager implements renderable {
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/** @var stdClass $options options for filemanager */
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public $options;
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/**
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* Constructor
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*
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* @param stdClass $options options for filemanager
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* default options are:
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* maxbytes=>-1,
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* areamaxbytes => FILE_AREA_MAX_BYTES_UNLIMITED,
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* maxfiles=>-1,
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* itemid=>0,
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* subdirs=>false,
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* client_id=>uniqid(),
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* acepted_types=>'*',
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* return_types=>FILE_INTERNAL,
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* context=>$PAGE->context,
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* author=>fullname($USER),
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* licenses=>array build from $CFG->licenses,
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* defaultlicense=>$CFG->sitedefaultlicense
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*/
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public function __construct(stdClass $options) {
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global $CFG, $USER, $PAGE;
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require_once($CFG->dirroot. '/repository/lib.php');
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$defaults = array(
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'maxbytes'=>-1,
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'areamaxbytes' => FILE_AREA_MAX_BYTES_UNLIMITED,
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'maxfiles'=>-1,
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'itemid'=>0,
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'subdirs'=>0,
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'client_id'=>uniqid(),
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'accepted_types'=>'*',
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'return_types'=>FILE_INTERNAL,
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'context'=>$PAGE->context,
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'author'=>fullname($USER),
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'licenses'=>array()
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);
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if (!empty($CFG->licenses)) {
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$array = explode(',', $CFG->licenses);
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foreach ($array as $license) {
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$l = new stdClass();
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$l->shortname = $license;
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$l->fullname = get_string($license, 'license');
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$defaults['licenses'][] = $l;
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}
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}
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if (!empty($CFG->sitedefaultlicense)) {
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$defaults['defaultlicense'] = $CFG->sitedefaultlicense;
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}
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foreach ($defaults as $key=>$value) {
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// Using !isset() prevents us from overwriting falsey values with defaults (as empty() did).
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if (!isset($options->$key)) {
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$options->$key = $value;
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}
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}
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$fs = get_file_storage();
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// initilise options, getting files in root path
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$this->options = file_get_drafarea_files($options->itemid, '/');
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// calculate file count
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$usercontext = context_user::instance($USER->id);
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$files = $fs->get_area_files($usercontext->id, 'user', 'draft', $options->itemid, 'id', false);
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$filecount = count($files);
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$this->options->filecount = $filecount;
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// copying other options
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foreach ($options as $name=>$value) {
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$this->options->$name = $value;
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}
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// calculate the maximum file size as minimum from what is specified in filepicker options,
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// course options, global configuration and php settings
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$coursebytes = $maxbytes = 0;
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list($context, $course, $cm) = get_context_info_array($this->options->context->id);
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if (is_object($course)) {
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$coursebytes = $course->maxbytes;
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}
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if (!empty($this->options->maxbytes) && $this->options->maxbytes > 0) {
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$maxbytes = $this->options->maxbytes;
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}
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$this->options->maxbytes = get_user_max_upload_file_size($context, $CFG->maxbytes, $coursebytes, $maxbytes);
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$this->options->userprefs = array();
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$this->options->userprefs['recentviewmode'] = get_user_preferences('filemanager_recentviewmode', '');
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user_preference_allow_ajax_update('filemanager_recentviewmode', PARAM_INT);
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// building file picker options
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$params = new stdClass();
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$params->accepted_types = $options->accepted_types;
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$params->return_types = $options->return_types;
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$params->context = $options->context;
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$params->env = 'filemanager';
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$params->disable_types = !empty($options->disable_types)?$options->disable_types:array();
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$filepicker_options = initialise_filepicker($params);
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$this->options->filepicker = $filepicker_options;
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}
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public function get_nonjsurl() {
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global $PAGE;
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return new moodle_url('/repository/draftfiles_manager.php', array(
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'env'=>'filemanager',
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'action'=>'browse',
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'itemid'=>$this->options->itemid,
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'subdirs'=>$this->options->subdirs,
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'maxbytes'=>$this->options->maxbytes,
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'areamaxbytes' => $this->options->areamaxbytes,
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'maxfiles'=>$this->options->maxfiles,
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'ctx_id'=>$PAGE->context->id, // TODO ?
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'course'=>$PAGE->course->id, // TODO ?
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'sesskey'=>sesskey(),
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));
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}
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}
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