Current Path : C:/xampp/htdocs/moodle/mod/feedback/item/captcha/ |
Current File : C:/xampp/htdocs/moodle/mod/feedback/item/captcha/lib.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/>. defined('MOODLE_INTERNAL') OR die('not allowed'); require_once($CFG->dirroot.'/mod/feedback/item/feedback_item_class.php'); class feedback_item_captcha extends feedback_item_base { protected $type = "captcha"; public function build_editform($item, $feedback, $cm) { global $DB; $editurl = new moodle_url('/mod/feedback/edit.php', array('id'=>$cm->id)); // There are no settings for recaptcha. if (isset($item->id) AND $item->id > 0) { notice(get_string('there_are_no_settings_for_recaptcha', 'feedback'), $editurl->out()); exit; } // Only one recaptcha can be in a feedback. $params = array('feedback' => $feedback->id, 'typ' => $this->type); if ($DB->record_exists('feedback_item', $params)) { notice(get_string('only_one_captcha_allowed', 'feedback'), $editurl->out()); exit; } $this->item = $item; $this->item_form = true; // Dummy. $lastposition = $DB->count_records('feedback_item', array('feedback'=>$feedback->id)); $this->item->feedback = $feedback->id; $this->item->template = 0; $this->item->name = get_string('captcha', 'feedback'); $this->item->label = ''; $this->item->presentation = ''; $this->item->typ = $this->type; $this->item->hasvalue = $this->get_hasvalue(); $this->item->position = $lastposition + 1; $this->item->required = 1; $this->item->dependitem = 0; $this->item->dependvalue = ''; $this->item->options = ''; } public function show_editform() { } public function is_cancelled() { return false; } public function get_data() { return true; } public function save_item() { global $DB; if (!$this->item) { return false; } if (empty($this->item->id)) { $this->item->id = $DB->insert_record('feedback_item', $this->item); } else { $DB->update_record('feedback_item', $this->item); } return $DB->get_record('feedback_item', array('id'=>$this->item->id)); } public function get_printval($item, $value) { return ''; } public function print_analysed($item, $itemnr = '', $groupid = false, $courseid = false) { return $itemnr; } public function excelprint_item(&$worksheet, $row_offset, $xls_formats, $item, $groupid, $courseid = false) { return $row_offset; } /** * Returns the formatted name of the item for the complete form or response view * * @param stdClass $item * @param bool $withpostfix * @return string */ public function get_display_name($item, $withpostfix = true) { return get_string('captcha', 'feedback'); } /** * Adds an input element to the complete form * * @param stdClass $item * @param mod_feedback_complete_form $form */ public function complete_form_element($item, $form) { $name = $this->get_display_name($item); $inputname = $item->typ . '_' . $item->id; if ($form->get_mode() != mod_feedback_complete_form::MODE_COMPLETE) { // Span to hold the element id. The id is used for drag and drop reordering. $form->add_form_element($item, ['static', $inputname, $name, html_writer::span('', '', ['id' => 'feedback_item_' . $item->id])], false, false); } else { // Add recaptcha element that is used during the form validation. $form->add_form_element($item, ['recaptcha', $inputname . 'recaptcha', $name], false, false); // Add hidden element with value "1" that will be saved in the values table after completion. $form->add_form_element($item, ['hidden', $inputname, 1], false); $form->set_element_type($inputname, PARAM_INT); } // Add recaptcha validation to the form. $form->add_validation_rule(function($values, $files) use ($item, $form) { $elementname = $item->typ . '_' . $item->id . 'recaptcha'; $recaptchaelement = $form->get_form_element($elementname); if (empty($values['g-recaptcha-response'])) { return array($elementname => get_string('required')); } else { $response = $values['g-recaptcha-response']; if (true !== ($result = $recaptchaelement->verify($response))) { return array($elementname => $result); } } return true; }); } public function create_value($data) { global $USER; return $USER->sesskey; } public function get_hasvalue() { global $CFG; // Is recaptcha configured in moodle? if (empty($CFG->recaptchaprivatekey) OR empty($CFG->recaptchapublickey)) { return 0; } return 1; } public function can_switch_require() { return false; } /** * Returns the list of actions allowed on this item in the edit mode * * @param stdClass $item * @param stdClass $feedback * @param cm_info $cm * @return action_menu_link[] */ public function edit_actions($item, $feedback, $cm) { $actions = parent::edit_actions($item, $feedback, $cm); unset($actions['update']); return $actions; } public function get_data_for_external($item) { global $CFG; if (empty($CFG->recaptchaprivatekey) || empty($CFG->recaptchapublickey)) { return null; } // With reCAPTCHA v2 the captcha will be rendered by the mobile client using just the publickey. $data[] = $CFG->recaptchapublickey; return json_encode($data); } /** * Return the analysis data ready for external functions. * * @param stdClass $item the item (question) information * @param int $groupid the group id to filter data (optional) * @param int $courseid the course id (optional) * @return array an array of data with non scalar types json encoded * @since Moodle 3.3 */ public function get_analysed_for_external($item, $groupid = false, $courseid = false) { return []; } }