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Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?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/>.

/**
 * Render a page containing a simple form which reposts to self via JS.
 *
 * The purpose of this form is to resend a cross-site request to self, which allows the browsers to include the Moodle
 * session cookie alongside the original POST data, allowing LTI flows to function despite browsers blocking
 * cross-site cookies.
 *
 * @copyright  2021 Cengage
 * @package    mod_lti
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
namespace mod_lti\output;

defined('MOODLE_INTERNAL') || die;

require_once($CFG->dirroot.'/mod/lti/locallib.php');

use renderable;
use templatable;
use renderer_base;
use stdClass;

/**
 * Render a page containing a simple form which reposts to self via JS.
 *
 * The purpose of this form is to resend a cross-site request to self, which allows the browsers to include the Moodle
 * session cookie alongside the original POST data, allowing LTI flows to function despite browsers blocking
 * cross-site cookies.
 *
 * @copyright  2021 Cengage
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class repost_crosssite_page implements renderable, templatable {

> /** @var array POST params. */ /** > protected $params; * Constructor > * > /** @var string URL to repost to. */ * @param string $url moodle URL to repost to > protected string $url; * @param array $post the POST params to be re-posted >
*/ public function __construct(string $url, array $post) { $this->params = array_map(function($k) use ($post) {
< return ["key" => $k, "value" => str_replace("\"", "&quot;", $post[$k])];
> return ["key" => $k, "value" => $post[$k]];
}, array_keys($post)); $this->url = $url; } /** * Export this data so it can be used as the context for a mustache template. * * @param renderer_base $output The renderer * @return stdClass Data to be used by the template */ public function export_for_template(renderer_base $output) { $renderdata = new stdClass(); $renderdata->url = $this->url; $renderdata->params = $this->params; return $renderdata; } }