chamilo-lms/main/document/add_link.php

<?php
/* For licensing terms, see /license.txt */
/**
 * This script allows to add cloud file links to the document structure
 * @package chamilo.document
 */
/**
 * Code
 */
 
// Including the global initialization file
require_once __DIR__.'/../inc/global.inc.php';
 
// Including additional libraries
require_once __DIR__.'/../inc/lib/document.lib.php';
require_once __DIR__.'/../inc/lib/urlUtils.lib.php';

$fileLinkEnabled = api_get_configuration_value('enable_add_file_link');

if (!$fileLinkEnabled) {
    api_not_allowed(true);
}
 
$course_info = api_get_course_info();
 
if (empty($course_info)) {
    api_not_allowed(true);
}

if ($is_certificate_mode) {
    api_not_allowed(true);
}
 
$document_data  = DocumentManager::get_document_data_by_id($_REQUEST['id'], api_get_course_id(), true);
if (empty($document_data)) {
    $document_id  = $parent_id =  0;
    $path = '/';
} else {
    if ($document_data['filetype'] == 'folder') {
        $document_id    = $document_data['id'];
        $path           = $document_data['path'].'/';
        $parent_id      = DocumentManager::get_document_id(api_get_course_info(), dirname($path));
    }
}
 
$is_allowed_to_edit = api_is_allowed_to_edit(null, true);
 
if (api_get_group_id()) {
    // If the group id is set, check if the user has the right to be here
    // Needed for group related stuff
    require_once api_get_path(LIBRARY_PATH).'groupmanager.lib.php';
    // Get group info
    $group_properties = GroupManager::get_group_properties(api_get_group_id());

    if ($is_allowed_to_edit || GroupManager::is_user_in_group($_user['user_id'], api_get_group_id())) { // Only courseadmin or group members allowed
        $to_group_id = api_get_group_id();
        $req_gid = '&amp;gidReq='.api_get_group_id();
        $interbreadcrumb[] = array('url' => '../group/group_space.php?gidReq='.api_get_group_id(), 'name' => get_lang('GroupSpace'));
    } else {
        api_not_allowed(true);
    }
} elseif ($is_allowed_to_edit || DocumentManager::is_my_shared_folder(api_get_user_id(), $path, api_get_session_id())) {
    // Admin for "regular" upload, no group documents. And check if is my shared folder
    $to_group_id = 0;
    $req_gid = '';
} else { // No course admin and no group member...
    api_not_allowed(true);
}

// Group docs can only be uploaded in the group directory
if ($to_group_id != 0 && $path == '/') {
    $path = $group_properties['directory'] . "/";
}
 
// Breadcrumbs
$interbreadcrumb[] = array('url' => './document.php?id='.$document_id.$req_gid, 'name'=> get_lang('Documents'));
 
// Interbreadcrumb for the current directory root path
if (empty($document_data['parents'])) {
    // Hack in order to not add the document to the breadcrumb in case it is a link
    if ($document_data['filetype'] != 'link') {
        $interbreadcrumb[] = array('url' => '#', 'name' => $document_data['title']);
    }
} else {
    foreach ($document_data['parents'] as $document_sub_data) {
        // Hack in order to not add the document to the breadcrumb in case it is a link
        if ($document_data['filetype'] != 'link') {
            $interbreadcrumb[] = array('url' => $document_sub_data['document_url'], 'name' => $document_sub_data['title']);
        }
    }
}
 
$this_section = SECTION_COURSES;
 
$nameTools = get_lang('LinkAdd');

// Display the header
Display::display_header($nameTools, 'Doc');
 
/*	Here we do all the work */
 
// Actions
echo '<div class="actions">';
// Link back to the documents overview
echo '<a href="document.php?id='.$document_id.'">'.Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('DocumentsOverview'), '', ICON_SIZE_MEDIUM).'</a>';
echo '</div>';
 
// Form to select directory
$folders = DocumentManager::get_all_document_folders(
    $_course,
    $groupIid,
    $is_allowed_to_edit
);

echo DocumentManager::build_directory_selector(
    $folders,
    $document_id,
    (isset($group_properties['directory']) ? $group_properties['directory'] : array())
);
 
$action = api_get_self().'?'.api_get_cidreq().'&id='.$document_id;
 
// URLs in whitelist
$urlWL = URLUtils::getFileHostingsWL();
sort($urlWL);
$urlWLRegEx = '/(\/\/|\.)('.implode('|', $urlWL).')/i'; //Matches any of the whitelisted urls preceded by // or .
$urlWLText = "\n\t* ".implode("\n\t* ", $urlWL);
$urlWLHTML = "<ul><li>".implode("</li><li>", $urlWL)."</li></ul>";
 
$form = new FormValidator('upload', 'POST', $action, '', array('enctype' => 'multipart/form-data'));
$form->addElement('hidden', 'linkid', $document_id);
$form->addElement('hidden', 'curdirpath', $path);
$form->addElement('text', 'name', get_lang('LinkName'), array('id' => 'name_link'));
$form->addElement('text', 'url', get_lang('Url'), array('id' => 'url_link'));
$form->addElement('static', 'info', '', '<span class="text-primary" data-toggle="tooltip" title="'.$urlWLHTML.'">'.get_lang('ValidDomainList').' <span class="glyphicon glyphicon-question-sign"></span></span>');
$form->addButtonSend(get_lang('AddCloudLink'), 'submitDocument');
 
$form->addRule('name', get_lang('PleaseEnterCloudLinkName'), 'required', null, 'client');
$form->addRule('name', get_lang('PleaseEnterCloudLinkName'), 'required', null, 'server');
$form->addRule('url', get_lang('PleaseEnterURL'), 'required', null, 'client');
$form->addRule('url', get_lang('PleaseEnterURL'), 'required', null, 'server');
// Well formed url pattern (must have the protocol)
$urlRegEx = URLUtils::getWellformedUrlRegex();
$form->addRule('url', get_lang('NotValidURL'), 'regex', $urlRegEx, 'client');
$form->addRule('url', get_lang('NotValidURL'), 'regex', $urlRegEx, 'server');
$form->addRule('url', get_lang('NotValidDomain').$urlWLText, 'regex', $urlWLRegEx, 'client');
$form->addRule('url', get_lang('NotValidDomain').$urlWLHTML, 'regex', $urlWLRegEx, 'server');
 
if ($form->validate()) {
    if (isset($_REQUEST['linkid'])) {
        $doc_id = DocumentManager::addCloudLink($course_info, $path, $_REQUEST['url'], $_REQUEST['name']);
        if ($doc_id) {
            Display::display_confirmation_message(get_lang('CloudLinkAdded') . '<br />', false);
        } else {
            if (DocumentManager::cloudLinkExists($course_info, $path, $_REQUEST['url'])) {
                Display::display_error_message(get_lang('UrlAlreadyExists'), false);
            } else {
                Display::display_error_message(get_lang('ErrorAddCloudLink'), false);
            }
        }
    }
}

// Add tooltip and correctly parse its inner HTML
echo '<script>
$(document).ready(function() {
    $("[data-toggle=\'tooltip\']").tooltip(
        {
            content: 
                function() {
                    return $(this).attr("title");
                }
        }
    );
});
</script>';

echo $form->return_form();
Display::display_footer();