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<?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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namespace mod_bigbluebuttonbn;
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/**
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* Class plugin.
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*
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* @package mod_bigbluebuttonbn
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* @copyright 2019 onwards, Blindside Networks Inc
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @author Darko Miletic (darko.miletic [at] gmail [dt] com)
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*/
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abstract class plugin {
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/**
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* Component name.
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*/
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const COMPONENT = 'mod_bigbluebuttonbn';
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/**
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* Helper function to convert an html string to plain text.
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*
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* @param string $html
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* @param int $len
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*
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* @return string
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*/
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public static function html2text($html, $len = 0) {
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$text = strip_tags($html);
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$text = str_replace(' ', ' ', $text);
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$textlen = strlen($text);
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$text = mb_substr($text, 0, $len);
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if ($textlen > $len) {
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$text .= '...';
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}
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return $text;
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}
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/**
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* Helper generates a random password.
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*
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* @param int $length
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* @param string $unique
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*
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* @return string
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*/
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public static function random_password($length = 8, $unique = "") {
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$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
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do {
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$password = substr(str_shuffle($chars), 0, $length);
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} while ($unique == $password);
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return $password;
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}
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/**
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* Generate random credentials for guest access
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*
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* @return array
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*/
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public static function generate_guest_meeting_credentials(): array {
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$password = self::random_password();
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$guestlinkuid = sha1(self::random_password(1024));
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return [$guestlinkuid, $password];
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}
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}
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