Yuri Kuznetsov
141 lines
4.5 KiB
PHP
141 lines
4.5 KiB
PHP
<?php
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/************************************************************************
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* This file is part of EspoCRM.
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*
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* EspoCRM - Open Source CRM application.
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* Copyright (C) 2014-2023 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
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* Website: https://www.espocrm.com
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*
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* EspoCRM 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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* EspoCRM 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 EspoCRM. If not, see http://www.gnu.org/licenses/.
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU General Public License version 3.
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*
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* In accordance with Section 7(b) of the GNU General Public License version 3,
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* these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
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************************************************************************/
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namespace Espo\Modules\Crm\Business\Event;
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use RuntimeException;
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class Ics
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{
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public const STATUS_CONFIRMED = 'CONFIRMED';
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public const STATUS_TENTATIVE = 'TENTATIVE';
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public const STATUS_CANCELLED = 'CANCELLED';
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public const METHOD_REQUEST = 'REQUEST';
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public const METHOD_CANCEL = 'CANCEL';
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/** @var self::METHOD_* string */
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private string $method;
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private ?string $output = null;
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private string $prodid;
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private ?int $startDate = null;
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private ?int $endDate = null;
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private ?string $summary = null;
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private ?string $address = null;
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private ?string $email = null;
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private ?string $who = null;
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private ?string $description = null;
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private ?string $uid = null;
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/** @var self::STATUS_* string */
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private string $status;
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/**
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* @param array<string, string|int|null> $attributes
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* @throws RuntimeException
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*/
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public function __construct(string $prodid, array $attributes = [])
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{
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if ($prodid === '') {
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throw new RuntimeException('PRODID is required');
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}
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$this->status = self::STATUS_CONFIRMED;
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$this->method = self::METHOD_REQUEST;
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$this->prodid = $prodid;
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foreach ($attributes as $key => $value) {
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if (!property_exists($this, $key)) {
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throw new RuntimeException("Bad attribute '{$key}'.");
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}
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$this->$key = $value;
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}
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}
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public function get(): string
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{
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if ($this->output === null) {
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$this->generate();
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}
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/** @var string */
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return $this->output;
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}
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private function generate(): void
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{
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$this->output =
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"BEGIN:VCALENDAR\r\n".
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"VERSION:2.0\r\n".
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"PRODID:-" . $this->prodid . "\r\n".
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"METHOD:" . $this->method . "\r\n".
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"BEGIN:VEVENT\r\n".
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"DTSTART:" . $this->formatTimestamp($this->startDate) . "\r\n".
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"DTEND:" . $this->formatTimestamp($this->endDate) . "\r\n".
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"SUMMARY:" . $this->escapeString($this->summary) . "\r\n".
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"LOCATION:" . $this->escapeString($this->address) . "\r\n".
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"ORGANIZER;CN=" . $this->escapeString($this->who) . ":MAILTO:" . $this->escapeString($this->email) . "\r\n".
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"DESCRIPTION:" . $this->escapeString($this->formatMultiline($this->description)) . "\r\n".
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"UID:" . $this->uid . "\r\n".
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"SEQUENCE:0\r\n".
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"DTSTAMP:" . $this->formatTimestamp(time()) . "\r\n".
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"STATUS:" . $this->status . "\r\n" .
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"END:VEVENT\r\n".
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"END:VCALENDAR";
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}
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private function formatTimestamp(?int $timestamp): string
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{
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if (!$timestamp) {
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$timestamp = time();
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}
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return date('Ymd\THis\Z', $timestamp);
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}
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private function escapeString(?string $string): string
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{
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if (!$string) {
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return '';
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}
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/** @var string */
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return preg_replace('/([\,;])/', '\\\$1', $string);
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}
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private function formatMultiline(?string $string): string
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{
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if (!$string) {
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return '';
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}
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return str_replace(["\r\n", "\n"], "\\r\\n", $string);
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}
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}
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