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PHP Version:

7.4.33

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infinio

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✏️ Editing: filepicker.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/>.
//

/**
 * This file is used to browse repositories in non-javascript mode
 *
 * @since Moodle 2.0
 * @package    core
 * @subpackage repository
 * @copyright  2009 Dongsheng Cai <dongsheng@moodle.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require_once('../config.php');
require_once($CFG->libdir.'/filelib.php');
require_once('lib.php');
/// Wait as long as it takes for this script to finish
core_php_time_limit::raise();

require_sesskey();
require_login();

// disable blocks in this page
$PAGE->set_pagelayout('embedded');

// general parameters
$action      = optional_param('action', '',        PARAM_ALPHA);
$client_id   = optional_param('client_id', '', PARAM_RAW);    // client ID
$itemid      = optional_param('itemid', '',        PARAM_INT);

// parameters for repository
$callback    = optional_param('callback', '',      PARAM_CLEANHTML);
$contextid   = optional_param('ctx_id',    SYSCONTEXTID, PARAM_INT);    // context ID
$courseid    = optional_param('course',    SITEID, PARAM_INT);    // course ID
$env         = optional_param('env', 'filepicker', PARAM_ALPHA);  // opened in file picker, file manager or html editor
$filename    = optional_param('filename', '',      PARAM_FILE);
$fileurl     = optional_param('fileurl', '',       PARAM_RAW);
$thumbnail   = optional_param('thumbnail', '',     PARAM_RAW);
$targetpath  = optional_param('targetpath', '',    PARAM_PATH);
$repo_id     = optional_param('repo_id', 0,        PARAM_INT);    // repository ID
$req_path    = optional_param('p', '',             PARAM_RAW);    // the path in repository
$curr_page   = optional_param('page', '',          PARAM_RAW);    // What page in repository?
$search_text = optional_param('s', '',             PARAM_CLEANHTML);
$maxfiles    = optional_param('maxfiles', -1,      PARAM_INT);    // maxfiles
$maxbytes    = optional_param('maxbytes',  0,      PARAM_INT);    // maxbytes
$subdirs     = optional_param('subdirs',  0,       PARAM_INT);    // maxbytes
$areamaxbytes   = optional_param('areamaxbytes', FILE_AREA_MAX_BYTES_UNLIMITED, PARAM_INT);    // Area maxbytes.
$accepted_types = optional_param_array('accepted_types', '*', PARAM_RAW);

// the path to save files
$savepath = optional_param('savepath', '/',    PARAM_PATH);
// path in draft area
$draftpath = optional_param('draftpath', '/',    PARAM_PATH);

// user context
$user_context = context_user::instance($USER->id);

$PAGE->set_context($user_context);
if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
    throw new \moodle_exception('invalidcourseid');
}
$PAGE->set_course($course);

if ($repo_id) {
    // Get repository instance information
    $repooptions = array(
        'ajax' => false,
        'mimetypes' => $accepted_types
    );
    $repo = repository::get_repository_by_id($repo_id, $contextid, $repooptions);

// Check permissions
    $repo->check_capability();
}

$context = context::instance_by_id($contextid);

// Make sure maxbytes passed is within site filesize limits.
$maxbytes = get_user_max_upload_file_size($context, $CFG->maxbytes, $course->maxbytes, $maxbytes);

$params = array('ctx_id' => $contextid, 'itemid' => $itemid, 'env' => $env, 'course'=>$courseid, 'maxbytes'=>$maxbytes, 'areamaxbytes'=>$areamaxbytes, 'maxfiles'=>$maxfiles, 'subdirs'=>$subdirs, 'sesskey'=>sesskey());
$params['action'] = 'browse';
$params['draftpath'] = $draftpath;
$home_url = new moodle_url('/repository/draftfiles_manager.php', $params);

$params['savepath'] = $savepath;
$params['repo_id'] = $repo_id;
$url = new moodle_url("/repository/filepicker.php", $params);
$PAGE->set_url('/repository/filepicker.php', $params);

switch ($action) {
case 'upload':
    // The uploaded file has been processed in plugin construct function
    // redirect to default page
    try {
        $repo->upload('', $maxbytes);
        redirect($home_url, get_string('uploadsucc','repository'));
    } catch (moodle_exception $e) {
        // inject target URL
        $e->link = $PAGE->url->out();
        echo $OUTPUT->header(); // hack: we need the embedded header here, standard error printing would not use it
        throw $e;
    }
    break;

case 'search':
    echo '<div><a href="' . $home_url->out() . '">'.get_string('back', 'repository')."</a></div>";
    try {
        $search_result = $repo->search($search_text);
        $search_result['issearchresult'] = true;
        $search_result['repo_id'] = $repo_id;

// TODO: need a better solution
        $purl = new moodle_url($url, array('search_paging' => 1, 'action' => 'search', 'repo_id' => $repo_id));
        $pagingbar = new paging_bar($search_result['total'], $search_result['page'] - 1, $search_result['perpage'], $purl, 'p');
        echo $OUTPUT->render($pagingbar);

echo '<table>';
        foreach ($search_result['list'] as $item) {
            echo '<tr>';
            echo '<td>';
            $style = '';
            if (isset($item['thumbnail_height'])) {
                $style .= 'max-height:'.$item['thumbnail_height'].'px;';
            }
            if (isset($item['thumbnail_width'])) {
                $style .= 'max-width:'.$item['thumbnail_width'].'px;';
            }
            echo html_writer::empty_tag('img', array('src' => $item['thumbnail'], 'alt' => '', 'style' => $style));
            echo '</td><td>';
            if (!empty($item['url'])) {
                echo html_writer::link($item['url'], s($item['title']), array('target'=>'_blank'));
            } else {
                echo s($item['title']);
            }
            echo '</td>';
            echo '<td>';
            echo '<form method="post">';
            echo '<input type="hidden" name="fileurl" value="'.s($item['source']).'"/>';
            echo '<input type="hidden" name="action" value="confirm"/>';
            echo '<input type="hidden" name="filename" value="'.s($item['title']).'"/>';
            echo '<input type="hidden" name="thumbnail" value="'.s($item['thumbnail']).'"/>';
            echo '<input type="submit" value="'.s(get_string('select','repository')).'" />';
            echo '</form>';
            echo '</td>';
            echo '</tr>';
        }
        echo '</table>';
    } catch (repository_exception $e) {
    }
    break;

case 'list':
case 'sign':
    echo $OUTPUT->header();

echo $OUTPUT->container_start();
    echo html_writer::link($url, get_string('back', 'repository'));
    echo $OUTPUT->container_end();

if ($repo->check_login()) {
        $list = $repo->get_listing($req_path, $curr_page);
        $dynload = !empty($list['dynload'])?true:false;
        if (!empty($list['upload'])) {
            echo '<form action="'.$url->out().'" method="post" enctype="multipart/form-data" style="display:inline">';
            echo '<label>'.$list['upload']['label'].': </label>';
            echo '<input type="file" name="repo_upload_file" /><br />';
            echo '<input type="hidden" name="action" value="upload" /><br />';
            echo '<input type="hidden" name="draftpath" value="'.s($draftpath).'" /><br />';
            echo '<input type="hidden" name="savepath" value="'.s($savepath).'" /><br />';
            echo '<input type="hidden" name="repo_id" value="'.s($repo_id).'" /><br />';
            echo '<input type="submit" value="'.s(get_string('upload', 'repository')).'" />';
            echo '</form>';
        } else {
            if (!empty($list['path'])) {
                foreach ($list['path'] as $p) {
                    //echo '<form method="post" style="display:inline">';
                    //echo '<input type="hidden" name="p" value="'.s($p['path']).'"';
                    //echo '<input type="hidden" name="action" value="list"';
                    //echo '<input type="hidden" name="draftpath" value="'.s($draftpath).'" /><br />';
                    //echo '<input type="hidden" name="savepath" value="'.s($savepath).'" /><br />';
                    //echo '<input style="display:inline" type="submit" value="'.s($p['name']).'" />';
                    //echo '</form>';

$pathurl = new moodle_url($url, array(
                        'p'=>$p['path'],
                        'action'=>'list',
                        'draftpath'=>$draftpath,
                        'savepath'=>$savepath
                        ));
                    echo '<strong>' . html_writer::link($pathurl, s($p['name'])) . '</strong>';
                    echo '<span> / </span>';
                }
            }
            if (!empty($list['page'])) {
                // TODO MDL-28482: need a better solution
                // paging_bar is not a good option because it starts page numbering from 0 and
                // repositories number pages starting from 1.
                $pagingurl = new moodle_url("/repository/filepicker.php?action=list&itemid=$itemid&ctx_id=$contextid&repo_id=$repo_id&course=$courseid&sesskey=".  sesskey());
                if (!isset($list['perpage']) && !isset($list['total'])) {
                    $list['perpage'] = 10; // instead of setting perpage&total we use number of pages, the result is the same
                }
                if (empty($list['total'])) {
                    if ($list['pages'] == -1) {
                        $total = ($list['page'] + 2) * $list['perpage'];
                    } else {
                        $total = $list['pages'] * $list['perpage'];
                    }
                } else {
                    $total = $list['total'];
                }
                echo $OUTPUT->paging_bar($total, $list['page'], $list['perpage'], $pagingurl);
            }
            echo '<table>';
            foreach ($list['list'] as $item) {
                echo '<tr>';
                echo '<td>';
                $style = '';
                if (isset($item['thumbnail_height'])) {
                    $style .= 'max-height:'.$item['thumbnail_height'].'px;';
                }
                if (isset($item['thumbnail_width'])) {
                    $style .= 'max-width:'.$item['thumbnail_width'].'px;';
                }
                echo html_writer::empty_tag('img', array('src' => $item['thumbnail'], 'style' => $style));
                echo '</td><td>';
                if (!empty($item['url'])) {
                    echo html_writer::link($item['url'], s($item['title']), array('target'=>'_blank'));
                } else {
                    echo s($item['title']);
                }
                echo '</td>';
                echo '<td>';
                if (!isset($item['children'])) {
                    echo '<form method="post">';
                    echo '<input type="hidden" name="fileurl" value="'.s($item['source']).'"/>';
                    echo '<input type="hidden" name="action" value="confirm"/>';
                    echo '<input type="hidden" name="draftpath" value="'.s($draftpath).'" /><br />';
                    echo '<input type="hidden" name="savepath" value="'.s($savepath).'" /><br />';
                    echo '<input type="hidden" name="filename" value="'.s($item['title']).'"/>';
                    echo '<input type="hidden" name="thumbnail" value="'.s($item['thumbnail']).'"/>';
                    echo '<input type="submit" value="'.s(get_string('select','repository')).'" />';
                    echo '</form>';
                } else {
                    echo '<form method="post">';
                    echo '<input type="hidden" name="p" value="'.s($item['path']).'"/>';
                    echo '<input type="submit" value="'.s(get_string('enter', 'repository')).'" />';
                    echo '</form>';
                }
                echo '</td>';
                echo '</tr>';
            }
            echo '</table>';
        }
    } else {
        echo '<form method="post">';
        echo '<input type="hidden" name="action" value="sign" />';
        echo '<input type="hidden" name="repo_id" value="'.s($repo_id).'" />';
        $repo->print_login();
        echo '</form>';
    }
    echo $OUTPUT->footer();
    break;

case 'download':
    // Check that user has permission to access this file
    if (!$repo->file_is_accessible($fileurl)) {
        throw new \moodle_exception('storedfilecannotread');
    }
    $record = new stdClass();
    $reference = $repo->get_file_reference($fileurl);

$sourcefield = $repo->get_file_source_info($fileurl);
    $record->source = repository::build_source_field($sourcefield);

// If file is already a reference, set $fileurl = file source, $repo = file repository
    // note that in this case user may not have permission to access the source file directly
    // so no file_browser/file_info can be used below
    if ($repo->has_moodle_files()) {
        $file = repository::get_moodle_file($reference);
        if ($file && $file->is_external_file()) {
            $sourcefield = $file->get_source(); // remember the original source
            $record->source = $repo::build_source_field($sourcefield);
            $reference = $file->get_reference();
            $repo_id = $file->get_repository_id();
            $repo = repository::get_repository_by_id($repo_id, $contextid, $repooptions);
        }
    }

$record->filepath = $savepath;
    $record->filename = $filename;
    $record->component = 'user';
    $record->filearea = 'draft';
    $record->itemid   = $itemid;
    $record->license  = '';
    $record->author   = '';

$now = time();
    $record->timecreated  = $now;
    $record->timemodified = $now;
    $record->userid       = $USER->id;
    $record->contextid = $user_context->id;
    $record->sortorder = 0;

if ($repo->has_moodle_files()) {
        $fileinfo = $repo->copy_to_area($reference, $record, $maxbytes, $areamaxbytes);
        redirect($home_url, get_string('downloadsucc', 'repository'));
    } else {
        $thefile = $repo->get_file($reference, $filename);
        if (!empty($thefile['path'])) {
            $filesize = filesize($thefile['path']);
            if ($maxbytes != -1 && $filesize>$maxbytes) {
                unlink($thefile['path']);
                throw new \moodle_exception('maxbytes');
            }
            // Ensure the file will not make the area exceed its size limit.
            if (file_is_draft_area_limit_reached($record->itemid, $areamaxbytes, $filesize)) {
                unlink($thefile['path']);
                throw new \moodle_exception('maxareabytes');
            }
            // Ensure the user does not upload too many draft files in a short period.
            if (file_is_draft_areas_limit_reached($USER->id)) {
                unlink($thefile['path']);
                throw new \moodle_exception('maxdraftitemids');
            }
            try {
                $info = repository::move_to_filepool($thefile['path'], $record);
                redirect($home_url, get_string('downloadsucc', 'repository'));
            } catch (moodle_exception $e) {
                // inject target URL
                $e->link = $PAGE->url->out();
                echo $OUTPUT->header(); // hack: we need the embedded header here, standard error printing would not use it
                throw $e;
            }
        } else {
            throw new \moodle_exception('cannotdownload', 'repository');
        }
    }

break;

case 'confirm':
    echo $OUTPUT->header();
    echo '<div><a href="'.s($PAGE->url->out(false)).'">'.get_string('back', 'repository').'</a></div>';
    echo '<img src="'.$thumbnail.'" />';
    echo '<form method="post">';
    echo '<table>';
    echo '  <tr>';
    echo '    <td>'. html_writer::label(get_string('filename', 'repository'), 'filename'). '</td>';
    echo '    <td><input type="text" id="filename" name="filename" value="'.s($filename).'" /></td>';
    echo '    <td><input type="hidden" name="fileurl" value="'.s($fileurl).'" /></td>';
    echo '    <td><input type="hidden" name="action" value="download" /></td>';
    echo '    <td><input type="hidden" name="itemid" value="'.s($itemid).'" /></td>';
    echo '  </tr>';
    echo '</table>';
    echo '<div>';
    // the save path
    echo ' <input name="draftpath" type="hidden" value="'.s($draftpath).'" />';
    echo ' <input name="savepath" type="hidden" value="'.s($savepath).'" />';
    echo ' <input type="submit" value="'.s(get_string('download', 'repository')).'" />';
    echo '</div>';
    echo '</form>';
    echo $OUTPUT->footer();
    break;

default:
case 'plugins':
    $params = array();
    $params['context'] = array($user_context, context_system::instance());
    $params['currentcontext'] = $PAGE->context;
    $params['return_types'] = FILE_INTERNAL;

$repos = repository::get_instances($params);
    echo $OUTPUT->header();
    echo html_writer::link($home_url->out(false), get_string('backtodraftfiles', 'repository'));
    echo '<div>';
    echo '<ul>';
    foreach($repos as $repo) {
        $info = $repo->get_meta();

$aurl = clone($url);
        $aurl->params(array('savepath'=>$savepath, 'action' => 'list', 'repo_id' => $info->id, 'draftpath'=>$draftpath));

echo '<li>';
        echo html_writer::empty_tag('img', array('src'=>$info->icon, 'alt'=>$info->name, 'class'=>'icon icon-pre'));
        echo html_writer::link($aurl, s($info->name));
        echo '</li>';
    }
    echo '</ul>';
    echo '</div>';
    echo $OUTPUT->footer();
    break;
}

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